2023

  1. W. J. Feng, Y. Cheng, L. J. Guo, “Temporal Coupled Mode Analysis of Chromaticity in Trilayer Subtractive Structural Colors,” ACS Photonics 2023, 10.1021/acsphotonics.3c00481

  2. A. Saha, T. G. Ma, H. Z. Wang, L. J. Guo, “Environmentally Sustainable and Multifunctional Chrome-like Coatings Having No Chromium Designed with Reinforcement Learning,” ACS Appl. Mater. Interfaces 2023, doi.org/10.1021/acsami.3c02993

  3. J. Paik, B. Jang, S. Nam, L. J. Guo, “A Transparent Poly(Vinyl Alcohol) Ion-Conducting Organohydrogel for Skin-Based Strain-Sensing Applications,” Adv. Healthcare Mater. 2013, 10.1002/adhm.202300076

  4. Y. Zhang, W. J. Feng, W. Zhu, X. Shan, W. K. Lin, L. J. Guo, T. Li, "Universal Color Retrofit to Polymer-based Radiative Cooling Materials" ACS Appl. Mater. Interfaces 2023, 15(17) 21008–21015 DOI: 10.1021/acsami.3c01324

  5. W. J. Feng, C. G. Ji, L. J. Guo, “Primary and Secondary Reflective Color Realized by Full-Solution-Processed Multi-Layer Structures,” Adv. Opt. Mater. 2023. doi.org/10.1002/adom.202300456

  6. D. Wang, Z. Y. Liu, H. Wang, M. Li, L. J. Guo, C. Zhang, “Structural color generation: from layered thin films to optical metasurfaces,” Nanophotonics, 2023, doi.org/10.1515/nanoph-2022-0063

  7. Y. B. Park, S. Lee, M. Tobah, T.G. Ma, L. J. Guo, “Optimized Optical/Electrical/Mechanical Properties of Ultrathin Metal Films for Flexible Transparent Conductor Applications” Invited, Optical Materials Express, 13(2), 304-347, 2023, https://doi.org/10.1364/OME.473277

2022

  1. B. A. Rorem, T. H. Cho, N. Farjam, J. D. Lenef, K. Barton, N. P. Dasgupta, L. J. Guo, “Integrating Structural Colors with Additive Manufacturing using Atomic Layer Deposition,” ACS Appl. Mater. Interfaces 14(27), 31099–31108, 2022. doi.org/10.1021/acsami.2c05940

  2. H. Z. Wang, L. J. Guo, “Neural Particle Swarm Optimization for Material-Aware Inverse Design of Structural Color,” iScience, 25(5), 104339, 2022. 10.1016/j.isci.2022.104339

  3. T. G. Ma, M. Tobah, H. Z. Wang, L. J. Guo, “Benchmarking Deep Learning-Based Models on Nanophotonic Inverse Design Problems”, Opto-Electron Sci 1, 210012 (2022), https://doi.org/10.29026/oes.2022.210012

  4. S. Lee, L. J. Guo, "Bio-inspired Toughening Mechanisms in a multilayer Transparent Conductor Structure," ACS Appl. Mater. Interfaces, 14(5), 7440–7449, 2022, doi.org/10.1021/acsami.1c21923.

  5. Y.-B. Park, C.-Y. Jeong, L. J. Guo, “Resistivity scaling transition in ultrathin metal film at critical thickness and its implication for the transparent conductor applications", Adv. Electron. Mater. 8(3), 2100970, 2022 https://doi.org/10.1002/aelm.202100970

  6. H. Y. Wang, Y. Zhang, C. G. Ji, C. Zhang, Z. Lu, Y. Liu, Z. Cao, J. Yuan, J. Tan, L. J. Guo, “High-Performance Transparent Broadband Microwave Absorbers,” Adv. Mater. Interfaces, 9, 2101714 (11 -pages), 2022, https://doi.org/10.1002/admi.202101714

2021

  1. L. Chen, A. Panday, J. Park, M. Kim, D. Oh, J. G. Ok, L. J. Guo, “Size-Selective Sub-micromter-Particle Confinement Utilizing Ionic Entropy-Directed Trapping in Inscribed Nanovoid Patterns,” ACS Nano 2021, 10.1021/acsnano.1c00014

  2. Z. Liu, C. Zhang, W. Zhu, Z. Huang, H. Lezec, A. Agrawal, L.J. Guo, “Compact Stereo Waveguide Display Based on a Unidirectional Polarization-Multiplexed Metagrating In-Coupler,” ACS Photonics, 8(4) 1112–1119, 2021. doi.org/10.1021/acsphotonics.0c01885

  3. T. H. Lee, Y. Cheong, H. W. Baac, L. J. Guo, “Origin of Gouy Phase Shift identified by Laser-generated Focused Ultrasound,” ACS Photonics, 7(11) 3236–3245, 2020. 10.1021/acsphotonics.0c01313

  4. J. Park, G. Yeon, K.-T. Lee, J. Choi, M. Kim, H.W. Baac, L. J. Guo, J. -G. Ok, “Demonstration of the one-step continuous fabrication of flexible polymer ridge waveguides via nanochannel-guided lithography,” J. Industrial Eng. Chem. 95, 286-291, 2021

  5. C.-Y. Jeong, Y.-B. Park, L. J. Guo, “Tackling light trapping in organic light-emitting diodes by complete elimination of waveguide modes,” Sci. Adv. 7(26), eabg03552021, 2021  
    DOI: 10.1126/sciadv.abg0355, (reported by Science Daily, Phys.Org, Opt. & Photon. News, NewsBreak, Nanowerk, EINnews, Fluentitech, myScience, InterestingEngineer, etc)

  6. Z. Liu, C. Zhang, W. Zhu, Z. Huang, H. Lezec, A. Agrawal, L.J. Guo, “Compact Stereo Waveguide Display Based on a Unidirectional Polarization-Multiplexed Metagrating In-Coupler,” ACS Photonics, 8(4) 1112–1119, 2021.

  7. Z. Y. Liu, W. J. Feng, Z. H. Huang, L. J. Guo, “Polarization-controlled efficient and unidirectional surface plasmon polariton excitation enabled by metagratings in a generalized Kretschmann configuration,” Opt. Express, 29(3), 3659-3668 (2021), 10.1364/OE.416057

  8. Z. Tian, H. Yan, Q. Peng, L. J. Guo, S. Zhou, C. Ding, P. Li, Q. Luo, “Atomistic Insights into Aluminum Doping Effect on Surface Roughness of Deposited Ultra-Thin Silver Films,” Nanomaterials, 11, 158, 2021. doi: 10.3390/nano11010158.

  9. C. Zhang, C.-G. Ji, Y.B. Park, L. J. Guo, “Thin-Metal-Film based Transparent Conductors: Material Preparation, Optical Design, and Device Applications", Adv. Opt. Mater. 2021  10.1002/adom.202001298

  10. Y. B. Park, C. Y. Jeong, L. J. Guo, “Resistivity scaling transition in ultrathin metal film at critical thickness and its implication for the transparent conductor applications", Adv. Electron. Mater. 2021  https://doi.org/10.1002/aelm.202100970

  11. Z. Liu, Y. Zou, C. G. Ji, X. Chen, G. Hou, C. Zhang, X. Wan, L. J. Guo, Y. Zhao, X. Zhang, “Broad-Spectrum Ultrathin-Metal-Based Oxide/Metal/Oxide Transparent Conductive Films for Optoelectronic Devices,” ACS Appl. Mater. Interfaces , 13, 49, 58539–58551, 2021  https://doi.org/10.1021/acsami.1c16691

  12. 6. L. Chen, A. Panday, J. Park, M. Kim, D. Oh, J. G. Ok, L. J. Guo, “Size-Selective Sub-micromter-Particle Confinement Utilizing Ionic Entropy-Directed Trapping in Inscribed Nanovoid Patterns,” ACS Nano 15(9) 14185–14192, 2021, 10.1021/acsnano.1c00014

2020

  1. T. H. Lee, Y. Cheong, H. W. Baac, L. J. Guo, “Origin of Gouy Phase Shift identified by Laser-generated Focused Ultrasound,” ACS Photonics, 2020. 10.1021/acsphotonics.0c01313

  2. C.-G. Ji. D. Liu, C. Zhang, L. J. Guo, “Ultrathin-metal-film-based transparent electrodes with relative transmittance surpassing 100%”, Nat. Comm. 11, 3367, 2020, 10.1038/s41467-020-17107-6, reported by Science Daily, New Atlas, Interesting Engineering, Tech Explorist, AZO Materials, Institute of Engineering and Technology, Futurity, Phys.Org etc

  3. H. Wang, Z. Zheng, C. G. Ji, L. J. Guo, “Automated Optical Multi-layer Design via Deep Reinforcement Learning,” Mach. Learn.: Sci. Technol. 2020,  https://doi.org/10.1088/2632-2153/abc327

  4. M. Sedghi, A. Gholami, L. J. Guo, “Analytical Analysis of PT and Quasi-PT Symmetry in Thick Diffraction Gratings Using Coupled-Wave Theory" J. of Optics. 22, 065605, 2020. https://doi.org/10.1088/2040-8986/ab8b24

  5. Z. Yang, C. G. Ji. Q. Cui, L.J. Guo “High-purity hybrid structural colors by enhancing optical absorption of organic dyes in resonant cavity,” Adv. Opt. Mater. 8， 2000317， 2020  doi.org/10.1002/adom.202000317

  6. X. Han, Z. Fan, Z. Liu, C. Li, L. J. Guo, “Inverse Design of Metasurface Optical Filters using Deep Neural Network with High Degrees of Freedom,” InfoMat, June, 2020. doi.org/10.1002/inf2.12116

  7. Z. Liu, Q. Cui, Z. Huang, L. J. Guo, “Transparent Colored Display Enabled by Flat Glass Waveguide and Nanoimprinted Multilayer Gratings,” ACS Photonics 7(6), 1418–1424, 2020, doi/10.1021/acsphotonics.9b01803

  8. R. A, Hatton, D. Muñoz-Rojas, S. H. Ko, L. J. Guo, “Editorial: Window Electrodes for Emerging Thin Film Photovoltaics,” Front. Mater., March 31, 2020, doi.org/10.3389/fmats.2020.00072

  9. W. Wan, W. Qiao, D. Pu. R. Li, C. Wang, Y. Hu, H. Duan, L. J. Guo, L.-S. Chen, “Holographic Sampling Display Based on Metagratings,” iScience, 23 (1), 100773, 2020, doi.org/10.1016/j.isci.2019.100773

2019

  1.  Y. Li, C. Ji, Y. Qu, X. Huang, S. Hou,C.-Z. Li, L.-S. Liao, L. Jay Guo, S. R. Forrest, "Enhanced Light Utilization in Semitransparent Organic Photovoltaics Using an Optical Outcoupling Architecture," Adv. Mater. 31 (40), 1903173, 2019 doi.org/10.1002/adma.201903173

  2. H. Wang, Y. Zhang, C. Ji, C. Zhang, Y. Zhang, D. Liu, Z. Zhang, Z. Lu, J. Tan, L. J. Guo, “Transparent Perfect Microwave Absorber Employing Asymmetric Resonance Cavity,”  Adv. Sci. 6, 1901320, 2019 doi.org/10.1002/advs.201901320

  3. Z.-M. Yang, C. G. Ji, D. Liu, L. J. Guo, “Enhancing the Purity of Reflective Structural Colors with Ultrathin Bilayer Media as Effective Ideal Absorbers,” Adv. Opt. Mater. 2019. doi.org/10.1002/adom.201900739

  4. S. J. Joglekar, M. D. Hammig, L. J. Guo, “High-Energy Photon Spectroscopy Using All Solution-Processed Heterojunctioned Surface-Modified Perovskite Single Crystals,” ACS Appl. Mater. Interfaces, 2019, DOI: 10.1021/acsami.9b09381

  5. C. Ji, S. Acharya, K. Yamada, S. Maldonado, L. J. Guo, “Electrodeposition of Large Area, Angle-Insensitive Multilayered Structural Colors,” ACS Appl. Mater. Interfaces, 2019, doi.org/10.1021/acsami.9b10236

  6. C. Zhang, Q. Huang, Q. Cui, C. Ji, Z. Zhang, X. Chen, T. George, S. Zhao, L. J. Guo, “High-Performance Large-Scale Flexible Optoelectronics Using Ultrathin Silver Films with Tunable Properties,” ACS Applied Mater. & Interfaces, 2019. 10.1021/acsami.9b08289

  7.  H. Wang, C. Ji, C. Zhang, Y. Zhang, Z. Lu, J. Tan, L. J. Guo, “Highly Transparent and Broadband Electromagnetic Interference Shielding Based on Ultrathin Doped Ag and Conducting Oxides Hybrid Film Structures" ACS Applied Mater. & Interfaces, 2019, 10.1021/acsami.9b00716

  8. O. Amiri,  A. E. Rezaee  H. Teymourinia,  M. Salavati-Niasari,  L. J. Guo  A. Baktash “New Strategy to Overcome the Instability That Could Speed up the Commercialization of Perovskite Solar Cells,” Adv. Mater Interfaces, 1900134 (8 pages), 2019, https://doi.org/10.1002/admi.201900134

  9. C. G. Ji, Z. Zhang, T. Masuda, Y, Kudo, L. J. Guo, “Vivid-colored silicon solar panels with high efficiency and non-iridescent appearance,” Nanoscale Horizons 2019, 10.1039/C8NH00368H

  10. Z. Lei, X. Chen, X. Wang, Guo, L. Jay; Yang, “Surface-emitting surface plasmon polariton laser in a second-order distributed feedback defect cavity", ACS Photonics, 2019, 10.1021/acsphotonics.8b01789

  11. X. Tu, S. L. Chen, C. Song, T. Huang, L. J. Guo, “Ultrahigh Q polymer microring resonators for biosensing applications," IEEE Photonics Journal. 99, 1, 2019. 10.1109/JPHOT.2019.2899666

  12. G. F. Liang, X. Chen, Z. Wen, G. Chen, L. J. Guo, “Super resolution photolithography using dielectric photonic crystal,” Opt. Lett. 44, 1182-1185 (2019) https://doi.org/10.1364/OL.44.001182 (Editor’s Pick)

  13. C. Ji, K.-T. Lee, and L. J. Guo, "High-color-purity, angle-invariant, and bi-directional structural colors based on higher-order resonances," Optics Letters 44 (1), 86, 2019, DOI: 10.1364/OL.44.000086

  14. C. Ji, C. Yang, W. Shen, K.-T. Lee, Y. Zhang, X. Liu, and L. J. Guo, "Decorative near-infrared transmission filters featuring high-efficiency and angular-insensitivity employing 1D photonic crystals," Nano Research, 12 (3), 543–548 2019, DOI: 10.1007/s12274-018-2249-8

  15. M. Jafari, L. J. Guo, M. Rais-Zadeh, “A reconfigurable color reflector by selective phase change of GeTe in a multi-layer structure" Advanced Optical Materials, 7(5), 181214 (9 pages) 2019. doi.org/10.1002/adom.201801214

  16. X. Chen, S. H. Lee, C. Zhang, Q. Li, K. Yamada, M. K. Kwak, L. J. Guo, “Plasmonic roller lithography,” Nanotechnology 30 105202, 2019 (doi: 10.1088/1361-6528/aaf9dc)

2018

  1. D. Liu, L. Wang. Q. Cui, L. J. Guo, “Planar Metasurfaces Enable High-Efficiency Colored Perovskite Solar Cells,” Advanced Science, 5 (10), 1800836, 2018, 10.1002/advs.201800836

  2. E. M. Chen, et al. “Sustainable p-type copper selenide solar material with ultra-large absorption coefficient,” Chem. Sci., 9, 5405-5414, 2018, 10.1039/C8SC00873F

  3. C. Zhang, N. Hong. C-G. Ji, et al. “Robust Extraction of Hyperbolic Metamaterial Permittivity Using Total Internal Reflection Ellipsometry,” ACS Photonics, 2018, 5 (6), pp 2234–2242, 10.1021/acsphotonics.8b00086

  4. Q. Ji, C. Zhang, X. Qi, R. Li, X. Hu, L. J. Guo, T. Yang, “Enhancing the Efficiencies of Organic Photovoltaic and Organic Light-Emitting Diode Devices by Regular Nano-Wrinkle Patterns,” J. Shanghai Jiaotong University (Science) 23 (1), 45–51, 2018.

  5. D. Liu, L. Wang, Q. Cui, L. J. Guo “Planar Meta-Surfaces Enable High-Efficiency Colored Perovskite Solar Cells,“ Adv. Science. 5, 1800836 (9 pages) 2018. doi.org/10.1002/advs.201800836

  6. T.-H. Lee, H. Won Baac, Q. Li, L. J. Guo "Efficient photoacoustic conversion in optical nanomaterials and composites", (invited review) Adv. Opt. Mater. 6(24), 1800491, 2018. 10.1002/adom.201800491

  7. C. Zhang, N. Hong, C. Ji, W. Zhu, X. Chen, A. Agrawal, Z. Zhang, T. E. Tiwald, S. Schoeche, J. N. Hilfiker, L. J. Guo, and H. J. Lezec, "Robust extraction of hyperbolic metamaterials permittivity using total internal reflection ellipsometry," ACS Photonics 5 (6), 2234, 2018, DOI: 10.1021/acsphotonics.8b00086

  8. J. Zhou, A. Panday, Y. Xu, X. Chen, L. Chen, C.G. Ji, and L. J. Guo, “Visualizing Mie resonances in low-index dielectric nanoparticles,” Phys. Rev. Lett. 120, 253902 (2018). DOI: 10.1103/PhysRevLett.120.253902

  9. G. F. Liang, X. Chen, Q. Zhao, L. J. Guo, “Achieving pattern uniformity in plasmonic lithography by spatial frequency selection,” Nanophotonics, 7(1): 277–286, 2018, doi.org/10.1515/nanoph-2017-0028

  10. S. J. Park, J. G. Ok, et, “Modulation of the effective density and refractive index of carbon nanotube forests via nanoimprint lithography,” Carbon, 129, 8-14, 2018, 10.1016/j.carbon.2017.11.079

  11. L. Wan, H. Chandrahalim, J. Zhou, Z. Li, C. Chen, S. Cho, H. Zhang, T. Mei, H. Tian, Y. Oki, N. Nishimura, X. Fan, and L. J. Guo, “Demonstration of versatile whispering-gallery micro-lasers for remote refractive index sensing,” Opt. Exp. 26(5) 5800-5809 (2018) 10.1364/OE.26.005800

  12. C. Chen, L. Wan, H. Chandrahalim, J. Zhou, H. Zhang, S. Cho, T. Mei, H. Hoshioka, H. Tian, Y. Oki, N. Nishimura, X. Fan, and L. J. Guo, Y. Oki, “Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers,” Opt. Exp. 26(1) 233-241 (2018) 10.1364/OE.26.000233

  13. X. Fu. et al. “Controlled synthesis of brightly fluorescent CH 3 NH 3 PbBr 3 perovskite nanocrystals employing Pb(C17H33COO)2 as the sole lead source,” RSC Adv. 8, 1132-1139, 2018, 10.1039/C7RA11832E

  14. C. Ji, C. Zhang, X. Qi, R. Li, X. Hu, L. J. Guo, T. Yang, “Enhancing the Efficiencies of Organic Photovoltaic and Organic Light-Emitting Diode Devices by Regular Nano-Wrinkle Patterns,” J. Shanghai Jiaotong University (Science) 23 (1), 45–51, 2018.

 2017

  1. C. Ji, K.-T. Lee, T. Xu, J. Zhou, H. J. Park, and L. J. Guo, "Engineering Light at the Nanoscale: Structural Color Filters and Broadband Perfect Absorbers," Adv. Opt. Mater., 5(20), 1700368, 2017, DOI:10.1002/adom.201700368.

  2. Xi Chen, C. Zhang, F. Yang, G.-F. Liang, Q.-C. Li and L. J. Guo, “Plasmonic Lithography Utilizing Epsilon Near Zero Hyperbolic Metamaterial,” ACS Nano, 11 (10), 9863–9868, (2017); DOI: 10.1021/acsnano.7b03584

  3. L. Wan, H. Chandrahalim, C. Chen, Q. Chen, T. Mei, Y. Oki, N. Nishimura, L. J. Guo, X. Fan, “On-chip, high-sensitivity temperature sensors based on dye-doped solid-state polymer microring lasers,”  Appl. Phys. Lett. 111, 061109 (2017); DOI: 10.1063/1.4986825

  4. X. D. Liu, L. J. Guo, Y. Zheng, “5-nm LiF as an Efficient Cathode Buffer Layer in Polymer Solar Cells Through Simply Introducing a C60 Interlayer,” Nanoscale Research Letters 12, 543 (2017) DOI 10.1186/s11671-017-2299-y

  5. G. F. Liang, X. Chen, Q. Zhao, L. J. Guo, “Achieving pattern uniformity in plasmonic lithography by spatial frequency selection,” Nanophotonics, 2017, DOI:10.1515/nanoph-2017-0028

  6. T.H. Lee, W. Luo, Q.-C. Li, H. Demirci, and L. J. Guo, “Laser-Induced Focused Ultrasound for Cavitation Treatment: Toward High-Precision Invisible Sonic Scalpel,” Small, in press, 2017. DOI: 10.1002/smll.201701555.

  7. C. Zhang, N. Kinsey, L. Chen, C.-G. Ji, M. Xu, M. Ferrera, X.Q. Pan, V. M. Shalaev, A. Boltasseva and L. J. Guo, “High-performance Doped Silver Films: Overcoming Fundamental Material Limits for Nanophotonic Applications,” Adv. Mater. 29(19), 1605177, 2017. DOI: 10.1002/adma.201605177 (reported by Science Daily, Popular Science, Phys.Org, Eurekalert, etc)

  8. M. Chen, Y. Wang, N. Shepherd, C. Huard, J. Zhou, L. J. Guo, W. Lu, X. G. Liang, “Abnormal Multiple Charge Memory States in Exfoliated Few-Layer WSe2 Transistors,” ACS Nano, 11 (1), 1091–1102, 2017. DOI: 10.1021/acsnano.6b08156

  9. C. G. Ji, G. Zhu, C. Zhang, S. Nam, Q. Li, L. Xia, W. Zhang, D. Banerjee, L. J. Guo, “Lenticular-Lens-Based Colored Antiglare Dashboard Surfaces,” Advanced Materials Technologies, 2(1), 1600177, 2017, DOI: 10.1002/admt.201600177

  10. T. H. Lee, L. J. Guo, “Highly Efficient Photoacoustic Conversion by Facilitated Heat Transfer in Ultrathin Metal Film Sandwiched by Polymer Layers", Adv. Opt. Mater. 5(2), 1600421, 2017, DOI: 10.1002/adom.201600421

 

2016

  1. K. T. Lee, J.-Y. Jang, S. J Park, C. Ji, L. J. Guo, H. J. Park, “Subwavelength Nanocavity for Flexible Structural Transmissive Color Generation with Wide Viewing Angle,” Optica, 2016

  2. T.-H. Jang, C. Zhang, H.–S. Youn, J. Zhou, and L. J. Guo,“Transparent and Flexible Mechanically Reconfigurable Electrically Small Antennas Based on Tortuous Metallic Micromesh,” IEEE Antenna and Propagation, 2016, 10.1109/TAP.2016.2623479

  3. K.T. Lee, J.-Y. Jang, S. J. Park. C. G. Ji, S.-M. Yang, L. J. Guo, H. J. Park, “Nanoimprint Lithography: Angle-Insensitive and CMOS-Compatible Subwavelength Color Printing,” Adv. Opt. Mater. 4(11):1695-1695, 2016, DOI: 10.1002/adom.201670062

  4. C. Y. Yang, W. Shen, J. Zhou, X. Fang, D. Zhao, X. Zhang, C. G. Ji, B. Fang, Y. Zhang, X. Liu, L. J. Guo, “Angle Robust Reflection/Transmission Plasmonic Filters Using Ultrathin Metal Patch Array,” Adv. Opt. Mater. 2016. 10.1002/adom.201600397

  5. T. Feng, Q. Li, C. Zhang, G. Xu, L. J. Guo, J. Yuan, X. Wang, “Characterizing Cellular Morphology by Photoacoustic Spectrum Analysis with an Ultra-broadband Optical Ultrasonic Detector,” Opt. Exp. 24(17), 19853-19862 (2016) https://doi.org/10.1364/OE.24.019853

  6. B. Bari, J.-H. Lee, T. Jang, P. Won, S. H. Ko, K. Alamgir, M. Arshad and L. J. Guo, “Simple hydrothermal synthesis of very-long and thin silver nanowires and their application in high quality transparent electrodes,” J. Mater. Chem. A, 4, 11365-11371 (2016), DOI: 10.1039/c6ta03308c

  7. C. Zhang, Carl Pfeiffer; Taehee Jang; Vishva Ray; Maxwell Junda; Prakash Uprety; Nikolas Podraza; Anthony Grbic; L. Jay Guo. “Breaking Malus' Law: Highly Efficient, Broadband, and Angular Robust Asymmetric Light Transmitting Metasurface", Laser & Photonics Reviews, 10(5), 791–798 (2016); 10.1002/lpor.201500328

  8. C. Pfeiffer, C. Zhang, V. Ray, L. J. Guo, A. Grbic, “Polarization rotation with ultra-thin bianisotropic metasurfaces,” Optica 3(4), 427-432, (2016), DOI: 10.1364/OPTICA.3.000427

  9. J.-H. Seo, T. Ling, S. Q. Gong, W. D. Zhou, A. L. Ma, L. J. Guo & Z.-Q. Ma, “Fast Flexible Thin-Film Transistors with a Nanotrench Structure,” Sci. Reports. 6, 24771, 2016.

  10. C. Zhang, et al, “Printed Photonic Elements: Nanoimprinting and Beyond,” J. Materials Chemistry C, 2016, DOI: 10.1039/C6TC01237J

  11. K.T. Lee, J. Y. Lee, T. Xu, H. J. Park, L. J. Guo, “Colored dual-functional photovoltaic cells,” J. Optics. 2016

  12. X. Chen, F. Yang, C. Zhang, J. Zhou, L. J. Guo, “Large-Area High Aspect Ratio Plasmonic Interference Lithography Utilizing a Single High-k Mode,” ACS Nano. 10, 4039−4045, 2016, DOI: 10.1021/acsnano.5b06137.

  13. K.T. Lee, L. J. Guo, H. J. Park, “Neutral- and Multi-Colored Semitransparent Perovskite Solar Cells,” Molecules 21(4), 475, 2016; DOI:  10.3390/molecules21040475

  14. A. Khan, S. Lee, T. Jang, Z. Xiong, C. Zhang, T. Tang, L. J. Guo, and W.-D. Li “High Performance Flexible Transparent Electrode with an Embedded Metal Mesh Fabricated by Cost-effective Solution-process” Small, 12(8), 3021–3030, 2016. DOI: 10.1002/smll.201600309.

  15. C. Yang, C. Ji, W. Shen, K.T. Lee, Y. Zhang, X. Liu, L.J. Guo “Compact multilayer film structures for ultrabroadband, omnidirectional, and efficient absorption,” ACS Photon. 3, 590−596 2016. DOI: 10.1021/acsphotonics.5b00689

  16. J. Zhou, L. J. Guo, “Light Coupling Engineering of a Double-Pinhole Nanoresonator,” J. Nanosci. & Nanotech. 16, 1-5, 2016

  17. J. Zhou, X. Chen, L. J. Guo, “Efficient Thermal–Light Interconversions Based on Optical Topological Transition in the Metal-Dielectric Multilayered Metamaterials,” Adv. Mater. 2016, DOI: 10.1002/adma.201505451

  18. T. –H. Lee,1 J. G. Ok, L. J. Guo, and H. W. Baac, “Low f-number photoacoustic lens for tight ultrasonic focusing and free-field micro-cavitation in water,” Appl. Phys. Lett. 2016

  19. T. –H. Lee, Q. Li, L. J. Guo, "Out-coupling of Longitudinal Photoacoustic Pulses by Mitigating the Phase Cancellation,” Sci. Rep. 6, 21511; doi: 10.1038/srep21511 (2016).

  20. K. T. Lee, C. –G. Ji, L. J. Guo, “Wide-angle, polarization-independent ultrathin broadband visible absorbers,” Appl. Phys. Lett. 2016

 

2015

  1. C. Zhang, S. –L. Chen, T. Ling, and L. J. Guo, “Imprinted Polymer Microrings as High-Performance Ultrasound Detectors in Photoacoustic Imaging,” (invited review) J. Lightwave Technol. 33(20), 4318 – 4328, 2015. doi: 10.1109/JLT.2015.2466661

  2. H. W. Baac, J. Ok, T. H. Lee, L. J. Guo, “Nano-Structural Characteristics of Carbon Nanotube-Polymer Composite Films for High-Amplitude Optoacoustic Generation,” Nanoscale, 7, 14460-14468, 2015, DOI: 10.1039/C5NR03769G

  3. Z. Pan, H. Subbaraman, Y. Zou, X. Xu, X. Zhang, C. Zhang, Q. Li, L. J. Guo, R. T. Chen, “Quasi-vertical tapers for polymer waveguide based inter-board optical interconnects,” Photonics Research, 2015.

  4. K. T. Lee, J. Y. Lee, L. J. Guo, “Microcavity-integrated, colored semitransparent hybrid photovoltaics with improved efficiency and color purity,” IEEE J. Photovoltaics, 2015

  5. H. J. Park, L. J. Guo, “Review of optical enhancement effects of plasmonic nanostructures on organic photovoltaic cells,” Chinese Chemical Lett. 2015.

  6. J. G. Ok, Young Jae Shin, Hui Joon Park, “A step towards next-generation nanoimprint lithography: extending productivity and applicability,” Applied Physics A 01/2015; DOI:10.1007/s00339-015-9229-6

  7. D.W. Zhao, C. Zhang, J. S. Kim, L. J. Guo, “High-performance Ta2O5/Al-doped Ag Electrode for Resonant Light Harvesting in Efficient Organic Solar Cells,” Adv. Energy Mater. 2015, 1500768 (8 pages), DOI: 10.1002/aenm.201500768.

  8. K. T. Lee, M. Fukuda, S. Joglekar, L. J. Guo, “Colored, see-through perovskite solar cells employing an optical cavity,” J. Mater. Chem. C, 3, 5377 – 5382, 2015, DOI: 10.1039/c5tc00622h

  9. K. T. Lee, C. G. Ji, D. Banerjee, L. J. Guo “High angular-tolerant, polarization-independent, and high-purity reflective structural colors based on 1D photonic crystals,” Laser Photonics Rev., 9(3), 354–362 (2015)  DOI:10.1002/lpor.201500029

  10. C. Zhang, S.L. Chen, T. Ling, L. J. Guo, (Invited) “Review of Imprinted Polymer Microring as Ultrasound Detector: Fabrication, characterization and Applications,” IEEE Sensors Journal, 15(6), 3241 - 3248 (2015). DOI: 10.1109/JSEN.2015.2421519

  11. F. Yang, X. Chen, E. -H. Cho, C. S. Lee, P. Jin, L. J. Guo, “Period reduction lithography in normal UV range with surface plasmon polaritons interference and hyperbolic metamaterial multilayer structure,” Appl. Phys. Express 06/2015; 8(6):062004. DOI:10.7567/APEX.8.062004

  12. T. H. Lee, H. W. Baac, J. G. Ok, H. S. Youn, L. J. Guo “Nozzle-Free Liquid Microjetting via Homogeneous Bubble Nucleation,” Phys. Rev. Appl. 3, 044007 (2015) DOI: 10.1103/PhysRevApplied.3.044007.

  13. C. G. Bottenfield, F. Wei, H. J. Park, L. J. Guo, G. Y. Li, “Investigation of Printing-Based Graded Bulk Heterojunction Organic Solar Cells,” Energy Technology, 3(4), 414–422, 2015,  DOI: 10.1002/ente.201402152

  14. H. J. Park, L.J. Guo, “Optical enhancement effects of plasmonic nanostructures on organic photovoltaic cells,” Chin. Chem. Lett. (2015), http://dx.doi.org/10.1016/j.cclet.2015.02.001

  15. Qi Zhang, Yanfei Di, Chad M. Huard, Jay Guo, Jie Wei, Jinbao Guo High-stable and Stretchable Graphene-Polymer processed Silver Nanowires Hybrid Electrodes for Flexible Di 12/2014; 3(7). DOI:10.1039/C4TC02448F

  16. H. S. Kim, K. T. Lee, C. Zhao, L. J. Guo, J. Kanicki, “Top illuminated organic photodetectors with dielectric/metal/dielectric transparent anode,” Org. Electron. 2015. doi:10.1016/j.orgel.2015.02.012

  17. H. S. Youn, H. J. Park, L. J. Guo, “Printed Nanostructures for Organic Photovoltaic Cells and Solution-Processed Polymer Light-Emitting Diodes,” Energy Technology, 3(4), 340–350, 2015, DOI: 10.1002/ente.201402163.

  18. K.T. Lee, S. Y. Seo, L. J. Guo, “High color purity subtractive color filters with wide viewing angle based on plasmonic perfect absorbers,” Adv. Opt. Mater., 3(3), 347–352, 2015. DOI: 10.1002/adom.201400533.

  19. J. Zhou, L. J. Guo, “Achieving angle-insensitive spectrum filter with the slit nanoresonator array structure,” J. Nanophotonics, 9(1), 093795, 2015. doi:10.1117/1.JNP.9.093795

  20. H. S. Youn, H. J. Park, L. J. Guo, “Organic photovoltaic cells: from performance improvement to manufacturing processes” Small, 11(19), 2228–2246, 2015. DOI: 10.1002/smll.201402883

2014

  1.  J. Y. Lee, T. H. Lee, H. J. Park, L. J. Guo, “Improved solar cell performance by adding ultra-thin Alq3 at the cathode interface,” Org. Electron. 2014, Accepted

  2.  T. H. Lee, H. W. Baac, J. G. Ok, H. S. Youn, L. J. Guo, “Controlled generation of single microbubble at solid surfaces by a nanosecond pressure pulse,” Phys. Rev. Appl. 2014, accepted.

  3.  K. T. Lee, J.Y. Lee, S.-Y. Seo, and L. J. Guo, “Colored ultra-thin hybrid photovoltaics with high quantum efficiency,” Light: Science & Applications, 2014. Accepted.

  4. J. Zhou, A. F. Kaplan, L. Chen, L. J. Guo, “Experiment and Theory of the Broadband Absorption by a Tapered Hyperbolic Metamaterial Array,” ACS Photon. 2014, dx.doi.org/10.1021/ph5001007

  5. K. T. Lee, S.-Y. Seo, J.Y. Lee, and L. J. Guo, “Strong resonance effect in a lossy medium-based optical cavity for angle robust spectrum filters,” Adv. Mater, 2014, DOI: 10.1002/adma.201402117.

  6. C. Pfeiffer, C. Zhang, V. Ray, L. J. Guo, A. Grbic, “High Performance Bianisotropic Metasurfaces: Asymmetric Transmission of Light,” Phys. Rev. Lett. 113, 023902, 2014; DOI: 10.1103/PhysRevLett.113.023902.

  7. K. T. Lee, S.-Y. Seo, J.Y. Lee, and L. J. Guo, “Ultrathin metal-semiconductor-metal resonator for angle invariant visible band transmission filters,” Appl. Phys. Lett. 104, 231112, (2014); DOI: 10.1063/1.4883494

  8. A. F. Kaplan, J. A. Gilbert, R. Trabert, T. H. Zurbuchen, L. J. Guo, “Free-Standing Silicon Nanogratings for Extreme UV Rejection,” ACS Photon. 1(7), 554–559, 2014. DOI: 10.1021/ph500018b.

  9. C. Zhang, D. Zhao, D. Gu, H. Kim, T. Ling, Y.-K. Wu, L. J. Guo, “An Ultrathin, Smooth, and Low-Loss Al-Doped Ag Film and Its Application as a Transparent Electrode in Organic Photovoltaics,” Adv. Mater, 2014, 10.1002/adma.201306091.

  10. H.-S. Youn, T.-H. Lee, and L. J. Guo “Multi-Film Roll Transferring (MRT) Process using Highly Conductive and Solution-Processed Silver Solution for Fully Solution-Processed Polymer Solar Cells,“ Energy & Environmental Sci, 7, 2764 – 2770, 2014, DOI: 10.1039/c4ee01073f.

  11.   S. L. Chen, Y.-C. Chang, C. Zhang, J. G. Ok, T. Ling, M. T. Mihnev, T. B. Norris, L. J. Guo, “Efficient real-time detection of terahertz pulse radiation based on photoacoustic conversion by carbon nanotube nanocomposite, Nat. Photon. 2014, doi:10.1038/nphoton.2014.96. (reported by EE Times, IEEE Spectrum, etc)

  12.  B.-Y. Hsieh, S.-L. Chen, T. Ling, L. J. Guo, and P.-C. Li. “All-optical scanhead for ultrasound and photoacoustic imaging - Imaging mode switching by dichroic filtering,” Photoacoustics, 2, 39–46, 2014. dx.doi.org/10.1016/j.pacs.2013.12.002.

  13.  T.-H. Jang, H. Youn. Y. J. Shin. L. J. Guo, “Transparent and Flexible Polarization-Independent Microwave Broadband Absorber,” ACS Photon. 1(3), 279–284, 2014. Doi: 10.1021/ph400172u

  14.  J. B. Guo, C. M. Huard, Y. Yang, Y. J. Shin, K. T. Lee, L. J. Guo,  “Compact and ITO-Free Liquid Crystal Devices using integrated structural Color Filters and Graphene Electrode,” Adv. Opt. Mater, 2, 435–441, 2014. DOI: 10.1002/adom.201300525.

  15. J. Y. Lee, K. T. Lee, S.Y. Seo, L. J. Guo, “Decorative power generating panels creating angle insensitive transmissive colors,” Sci. Rep. 2014

  16. J. Zhou, and L. J. Guo, “Transition from a spectrum filter to a polarizer in a metallic nano-slit array,” Sci. Rep. 4, 3614, 2014. doi:10.1038/srep03614.    

  17. J. G. Ok, J. Y. Lee, H. W. Baac, S. Tawfick, L. J. Guo, A. J. Hart, “Rapid anisotropic photoconductive response of ZnO-coated aligned carbon nanotube sheets" ACS Applied Materials & Interfaces, 2014.

2013

  1.  H. W. Baac, T. Lee, J. G. Ok, T. Hall, and L. J. Guo, “Dual-frequency focused ultrasound using optoacoustic and piezoelectric transmitters for single-pulsed free-field cavitation in water,” Appl. Phys. Lett. 103, 234103 (2013)

  2. P. Zhu, P. Jin, and L. J. Guo, “Insight of limitations of effective media theory for metal–dielectric multilayer metamaterials,” Opt. Comm. 305, 8-12 (2013)

  3. J. G. Ok, M. K. Kwak, C. M. Huard and L. J. Guo “Continuous and high-throughput nanopatterning methodologies based on mechanical deformation,” (invited review) J. Mater. Chem. C. 1(46), 7681 – 7691, 2013. DOI:10.1039/C3TC30908H

  4. S.-L. Chen, Z.-X. Xie, L. J. Guo, X.D. Wang, “A fiber-optic system for dual-modality photoacoustic microscopy and confocal fluorescence microscopy using miniature components,” Photoacoustics, 1, 30-35, 2013. Doi: /10.1016/j.pacs.2013.07.001

  5. Y. J. Shin, Y.-K. Wu, K.-T. Lee, J. G. Ok, and L. J. Guo, “Fabrication and Encapsulation of a Short-Period Wire Grid Polarizer with Improved Viewing Angle by the Angled-evaporation Method,” Adv. Opt. Mater. 2013, DOI: 10.1002/adom.201300276.

  6. J. G. Ok, M. K. Kwak, C. M. Huard and L. J. Guo “Photo Roll Lithography for continuous and scalable patterning, with application in transparent conductor fabrication,” Adv. Mater. 2013, in press.

  7. H. W. Baac, T. -H. Lee, L. J. Guo, “Micro-ultrasonic cleaving of cell clusters by laser-generated focused ultrasound and its mechanisms,” Biomed. Opt. Exp. 8, 1442-1450 (2013); doi: 10.1364/BOE.4.001442 (reported by Nature Photonics: doi:10.1038/nphoton.2013.259)

  8. P. Zhu, P. Jin; H.-F. Shi and L. Jay Guo, “Funneling light into subwavelength grooves in metal/dielectric multilayer films,” Opt. Express. 21, 3595-3602 (2013).

  9. X. Lin, T. Ling; H. Subbaraman, L. J. Guo, R. T. Chen, “Printable thermo-optic polymer switches utilizing imprinting and ink-jet printing,” Opt. Express. 21, 2110-2117 (2013)

  10. X. Lin, T. Ling; H. Subbaraman, X. Y. Zhang, L. J. Guo, R. T. Chen, “Ultraviolet imprinting and aligned ink-jet printing for multilayer patterning of electro-optic polymer modulators,” Opt. Lett. 38, 1597-1599 (2013)

  11. J. G. Ok, M. K. Kwak, C. M. Huard and L. J. Guo “Photo Roll Lithography for continuous and scalable patterning, with application in transparent conductor fabrication,” (invited review) J. Mater. Chem. C 2013, in press DOI:10.1039/C3TC30908H

  12. S. B. Shin, M.Y. Yang, L. J. Guo and H.S. Youn, “Novel Roll-to-Roll Cohesive Coated Flexible High-Efficiency Polymer Light-Emitting Diodes Utilizing ITO-Free Polymer Anode,“ Small, 2013, DOI: 10.1002/smll.201300382

  13. Y. J. Shin, Y. K. Wu, and L. J. Guo, “Nanoimprinting ultra small and high aspect ratio structures by using rubber-toughened UV cure epoxy resist,” Nanotech. 2013, in press.

  14. S. H. Ahn, J. G. Ok, M. K. Kwak, K. T. Lee, J. Y. Lee and L. J. Guo, “Template-free Vibrational Indentation Patterning (VIP) of micro/nano-scale grating structures with real-time pitch and angle tunability,” Adv. Func. Mater. 2013, in press. doi:10.1002/adfm.201300293

  15. H. J. Park, J. Y. Lee, T. H. Lee, L. J. Guo, “Advanced Heterojunction Structure of Polymer Photovoltaic Cells Generating Ultrahigh Photocurrent with Internal Quantum Efficiency Approaching 100 %,” Adv. Energy. Mater. 3, 1135–1142 (2013), DOI: 10.1002/aenm.201300245.

  16. H. J. Park, H. S. Kim, J. Y. Lee, T.H. Lee, L. J. Guo, “Optimization of Polymer Photovoltaic Cells with Bulk Heterojunction Layers Hundreds of Nanometers Thick: Modifying the Morphology and Cathode Interface,” Energy & Environmental Sci, 6, 2203-2210, (2013), 2013.

  17. A. E. Hollowell, L. J. Guo, “Nanowire Grid Polarizers Integrated into Flexible, Gas Permeable, Biocompatible Materials,” Adv. Opt. Mater, 1, 343-348, 2013. DOI: 10.1002/adom.20130002

  18. H.-W. Baac, J. Frampton, J. G. Ok, S. Takayama, and L. J. Guo, "Localized micro-scale disruption of cells using laser-generated focused ultrasound," J. Biophoton. doi 10.1002/jbio.201200247.

  19. S. H Ahn, J. G. Ok, M. K. Kwak, K. T. Lee, J. Y. Lee, and L. J. Guo, "Template-free Vibrational Indentation Patterning (VIP) of micro/nano-scale grating structures with real-time pitch and angle tunability," Adv. Mater. Accepted

  20. A. E. Hollowell, L. J. Guo, "Nanowire Grid Polarizers Integrated into Flexible, Gas Permeable, Biocompatible Materials," Adv. Opt. Mater. In Press

  21. Y.-K. Wu, A. E. Hollowell, C. Zhang, L. J. Guo, "Angle-Insensitive Structural Colours based on Metallic Nanocavities and Coloured Pixels beyond the Diffraction Limit ,"Scientific Reports 3, 1194; DOI:10.1038/srep01194 (2013) (reported by Engadget, EE Times, New Scientist, Nat. Photonics, Optics & Photon. News, etc) 

  22. X.-D. Liu, J.-Y. Lee, L. J. Guo, "Efficiency and stability enhancement of polymer solar cells using multi-stacks of C60/LiF as cathode buffer layer," Org. Electron 14, 591–598 (2013)

  23. X.-D. Liu, H.-S. Kim, L. J. Guo, "Optimization of thermally reduced graphene oxide for an efficient hole transport layer in polymer solar cells," Org. Electron 14, 591–598 (2013)

2012

  1.  X. Tu, Y.-K. Wu, and L. J. Guo, "Vertical coupled photonic molecule laser," Appl. Phys. Lett. 100, 041103, 2012.

  2. H. W. Baac, J. G. Ok, A. Maxwell, K.-T. Lee, Y.–C. Chen, A. J. Hart, Z. Xu, E. Yoon, L. J. Guo, "Carbon-Nanotube Optoacoustic Lens for Focused Ultrasound Generation and High-Precision Targeted Therapy," Scientific Reports, 2, 989; DOI: 10.1038/srep0098 (reported by Science Daily, R&D Magazine, Nature Photonics, Science Newsline, Business Standard, etc) 

  3. P. Zhu, L. J. Guo, "High performance broadband absorber in the visible band by engineered dispersion and geometry of a metal-dielectric-metal stack," Appl. Phys. Lett. 101, 223102, 2012

  4. J. G. Ok, H. S. Youn, M. K. Kwak, K.-T. Lee, Y. J. Shin, A. Greenwald, Y. Liu, and L. J. Guo, "Continuous and scalable fabrication of flexible metamaterial films via Roll-to-Roll nanoimprint process for broadband plasmonic IR filters," Appl. Phys. Lett. 101, 223102, 2012

  5. M. K. Kwak, J. G. Ok, J. Y. Lee, and L. J. Guo, "Continuous phase shift lithography by roll type mask and application to transparent conductor fabrication," Nanotech. 23, 344408 (6 pages), 2012

  6. Y. J. Shin, C. Pina-Hernandez, Y. K. Wu, J. G. Ok, and L. J. Guo, "Facile route of flexible wire grid polarizer fabrication by angled-evaporations of aluminum on two sidewalls of an imprinted nanograting," Nanotech. 23, 344018 (6 pages), 2012

  7. P. Zhu, H. Shi, and L. J. Guo, "SPPs coupling induced interference in metal/dielectric multilayer waveguides and its application for plasmonic lithography," Opt. Exp. 22, 12521-12529, 2012

  8. S.-L. Chen, Z. Xie, T. Ling, L. J. Guo, X. Wei, and X.-D. Wang, , "Miniaturized all-optical photoacoustic microscopy based on microelectromechanical systems mirror scanning," Optics Letters 37(20):4263--4265, 2012

  9. B.-Y. Hsieh, S.-L. Chen, T. Ling, L. J. Guo, and P.-C. Li., "All-optical scanhead for ultrasound and photoacoustic dual-modality imaging," Optics Express, 20(2):1588--1596 

  10. B.-Y. Hsieh, S.-L. Chen, T. Ling, L. J. Guo, and P.-C. Li., "All-optical scanhead for ultrasound and photoacoustic dual-modality imaging," Optics Express, 20(2):1588--1596, 2012 

2011

  1. T. Ling. S.-L. Chen and L. J. Guo, "Fabrication and Characterization of High Q Polymer Micro-ring Resonator and Its Application as a Sensitive Ultrasonic Detector,"Opt. Exp. 19, 861-869,2011

  2. 2. C. Pina-Hernandez, P.-F. Fu, and L. J. Guo, "Ultrasmall Structure Fabrication via a Facile Size Modification of Nanoimprinted Functional Silsesquioxane Polymers," ACS Nano 5, 923-931, 2011

  3. 3. H. J. Park, T. Xu, J. Y. Lee, A. Ledbetter, and L. J. Guo, "Photonic Color Filters Integrated with Organic Solar Cells for Energy Harvesting," ACS Nano, 9, 7055–7060, 2011. (reported by Technology Review, Laser Focused World, etc).

  4. 4. J. G. Ok, H. J. Park, M. K. Kwak, C. Pina-Hernandez, S. H. Ahn, and L. J. Guo, "Continuous patterning of nanogratings by nanochannel-guided lithography on liquid resists," Adv. Mater. 2011. DOI: 10.1002/adma.201102199

  5. 5. T. Xu, H.-F. Shi, Y.-K. Wu, A. F. Kaplan, J. G. Ok, and L. J. Guo, "Structural Colors: from Plasmonic to Carbon Nanostructures," Small 7, 3128–3136, 2011.

  6. 6. Y.-H Chen, Y.-K. Wu, L. J. Guo, "Photonic crystal microdisk lasers," Appl. Phys. Lett. 98, 131109-1, 2011.

  7. 7. B.-G. Kim, E. J. Jeong, H. J. Park, D. Bilby, L. J. Guo, J. S. Kim, "Effect of Polymer Aggregation on the Open Circuit Voltage in Organic Photovoltaic Cells: Aggregation Induced Conjugated Polymer Gel and its Application for Preventing Open Circuit Voltage Drop," ACS Applied Materials & Interfaces 3, 674680 2011.

  8. 8. S.-L. Chen, T. Ling, and L. J. Guo, "Low-noise small size microring ultrasonic detectors for high-resolution photoacoustic imaging," J. Biomed. Opt. 16(5), 056001 (6 pages), 2011

  9. 9. T. Ling, S.-L. Chen, and L. J. Guo, "High-sensitivity and wide-directivity ultrasound detection using high Q polymer micro-ring resonators," Appl. Phys. Lett 98, 204103 (3 pages), 2011

  10. 10. Z.-X. Xie, S.-L. Chen, T. Ling, L. J. Guo, P. L. Carson, X.-D. Wang, "Pure optical photoacoustic microscopy," Opt. Exp 10, 9027-9034, 2011

  11. 12. A. Kaplan, T. Xu, and L. J. Guo, "High Efficiency Resonance-Based Color Filters with Tunable Transmission Bandwidth Fabricated Using Nanoimprint Lithography,"Appl. Phys. Lett. 99, 143111, 2011.

  12. 13. H.-F. Shi, J. G. Ok, H. W. Baac, L. J. Guo, "Low density carbon nanotube forest as an index-matched and near perfect absorption coating," Appl. Phys. Lett 99, 211103, 2011. (reported by Science, Technology Review, BBC News, Popular Science, NY Times Syndicates, etc)

  13. 14. Yi-Hao Chen, Yi-Kuei Wu, and L. Jay Guo, "Photonic crystal microdisk lasers,"Appl. Phys. Lett 98, 131109, 2011

  14. 15. J. G. Ok, H. J. Park, M. K. Kwak,C. Pina-Hernandez, S. H. Ahn, and L. J. Guo, "Continuous patterning of nanogratings by nanochannel-guided lithography on liquid resists," Adv. Mater 23, 4444–4448, 2011

  15. 16. H. J. Park, T. Xu, J. Y. Lee, A. Ledbetter, and L. J. Guo, "Photonic Color Filters Integrated with Organic Solar Cells for Energy Harvesting,," ACS Nano 9, 7055–7060, 2011. (reported by Technology Review, Laser Focused World, etc)

2010

  1. Y.-H Chen, L. J. Guo, "High Q Long-Range Surface Plasmon Polariton Modesin Sub-wavelength Metallic Microdisk Cavity," Plasmonics 2010, DOI 10.1007/s11468-010-9185-0.

  2. H. W. Baac, J. G. Ok, H. J. Park, T. Ling, S.-L. Chen, A. J. Hart and L. J. Guo, "Carbon nanotube composite optoacoustic transmitters for strong and high frequency ultrasound generation," App. Phys. Lett. 97, 234104, 2010.

  3. S.-H Ahn and L. J. Guo, "Spontaneous Formation of Periodic Nanostructures by Localized Dynamic Wrinkling," Nano Lett. 10, 42284234, 2010.

  4. A. F. Kaplan, T. Xu, Y.-K. Wu, and L. J. Guo, "Multi-Layer Pattern Transfer for Plasmonic Color Filter Application," J. Vac. Sci. & Technol. B. 2010.

  5. P. Mukherjee, A. Bruccoleri, R. K. Heilmann, and M. L. Schattenburg, A. F. Kaplan, L. J. Guo, "Plasma etch fabrication of 60:1 aspect ratio silicon nanogratings with 200 nm pitch," J. Vac. Sci. & Technol. B. 2010.

  6. T. Xu, Y.-K. Wu, and X.-G. Luo and L. J. Guo, "Plasmonic nano-resonators for color filtering and spectral imaging," Nat. Comm. doi: 10.1038 / ncomms1058, 2010. (Reported by Technology Review, R&D Magazine, Popular Science, Photonics Spectra, etc)

  7. C. Pina-Hernandez, L. J. Guo, and P.-F. Fu, "High Resolution Functional Epoxysilsesquioxane-Based Patterning Layers for Large Area Nanoimprinting," ACS Nano 4, 47764784, 2010.

  8. B.-Y. Hsieh, S.-L. Chen, T. Ling, L. J. Guo, and P.-C. Li, "An integrated intravascular ultrasound and photoacoustic imaging scan head," Opt. Lett. 35, 2892-2894, 2010.

  9. A. Lopatynskyi, O. Lopatynska, L. J. Guo, and V. Chegel, "Localized Surface Plasmon Resonance Biosensor Part I: Theoretical Study of Sensitivity  Extended Mie Approach," IEEE Sensors, 11, 361  369, 2010.

  10. M. G. Kang, T. Xu, H. J. Park, X. G. Luo, and L. J. Guo, "Efficiency Enhancement of Organic Solar Cells using Transparent Plasmonic Ag Nanowire Electrodes," Adv. Mater. 22, 43784383, 2010. (doi: 10.1002/adma.201001395) 

  11. L.-J. Cheng and L. J. Guo, "Entrance Effect on Ion Transport in Nanochannels,"Microfluidics and Nanofluidics, 9, 1033-1039, 2010. (doi:10.1007/s10404-010-0621-4)

  12. H. J. Park, M. G. Kang, S.-H. Ahn and L. J. Guo, "Facile route to polymer solar cells with optimum morphology applicable to roll-to-roll process," Adv Mater, 22, E247-E253, 2010. (Reported by Technology Review and top 5 download from May-July 2010, DOI: 10.1002/adma.201000250)

  13. S.-L. Chen, T. Ling, S.-W. Huang, H. W. Baac, and L. J. Guo, "Photoacoustic correlation spectroscopy and its applications to low speed flow measurement," Opt. Lett. 35, 1200, 2010.

  14. M.-G. Kang, H. J. Park, S.-H. Ahn and L. J. Guo, "Transparent Cu nanowire mesh electrode on a flexible substrate fabricated by simple transfer printing and its application in organic solar cell," Solar Energy Materials & Solar Cells, 94, 11791184, 2010. doi:10.1016/j.solmat.2010.02.039

  15. H.-F. Shi and L. J. Guo, "Design of Plasmonic Near Field Plate at Opitical Frequency,"Appl. Phys. Lett. 96, 141107, 2010.

  16. M. G. Kang, H. J. Park, S.-H. Ahn, T. Xu, and L. J. Guo, "Towards Low-Cost, High Efficiency, and Scalable Organic Solar Cells with Transparent Metal Electrode and Improved Domain Morphology," IEEE J. Sel. Top. Quantum Electron. 2010, in press. doi: 10.1109/JSTQE.2010.2044634

  17. L. J. Cheng, and L. J. Guo, "Nanofluidic diodes," Chem. Soc. Rev. 2010, DOI: 10.1039/b822554k.

Before 2010

  1. S.-H. Ahn and L. J. Guo, “Dynamic Nanoinscribing for Continuous and Seamless Metal and Polymer Nanogratings,” Nano Lett. 9, 4392-4397, 2009 (Highlighted by Nature Photonics).

  2.  A. F. Kaplan, Y.-H. Chen, M.-G. Kang, and L. J. Guo, T. Xu, X. Luo “Subwavelength grating structures with magnetic resonances at visible frequencies fabricated by Nanoimprint Lithography for Large Area Applications,” J. Vac. Sci. & Technol. B., 27, 3175-3179, 2009.

  3. H. J. Park, M.-G. Kang, and L. J. Guo, “Multi-Functional High Density Sub-20 nm SiO2 Nanostructures Fabricated by Block Copolymer Template for Nanoimprint Lithography,” ACS Nano, 3, 2601–2608, 2009.

  4. P. Mukherjee, T. H. Zurbuchen, and L. J. Guo, “Fabrication and testing of freestanding Si nanogratings for UV filtration on space-based particle sensors,” Nanotechnology, 20, 325301 (8pp), 2009. 

  5. H. W. Baac, T. Ling, S.-W. Huang, S. Ashkenazi, and L. J. Guo, “Characterization of optical microring ultrasound detector by using a high frequency focused photoacoustic transmitter,” Appl. Phys. Lett.  95, 144105 (3pp), 2009.

  6. S.-L. Chen, S.-W. Huang, T. Ling, S. Ashkenazi, and L. J. Guo, “Wideband photoacoustic tomography using polymer microring resonators,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr. 56, 2482-2491, 2009.

  7. S. H. Ahn, and L. J. Guo, “Large-area Roll-to-Roll and Roll-to-Plate Nanoimprint Lithography and analytical models for predicting residual layer thickness,” ACS Nano 3, 2304–2310, 2009. (reported by Technology Review and ACS Podcast)

  8. L. J. Cheng and L. J. Guo, “Ionic current rectification, breakdown and switching in heterogeneous oxide nanofluidic devices,” ACS Nano, 24, 575–584, 2009.

  9. M. W. Kim, Y.-H. Chen, J. Moore, Y.-K. Wu, L. J. Guo, P. Bhattacharya, and P. C. Ku, "Sub-wavelength surface plasmon optical cavity - scaling, amplification and coherence," IEEE J. Sel. Top. Quantum Electron. 15, 1551-1528, 2009. 

  10. T. Ling and L. J. Guo, “Analysis the Sensing Properties of Silica Micro-tube Resonator Sensors,” J. Opt. Soc. Am. B, 26, 471-477, 2009. (Selected for publication in the Virtual Journal for Biomedical Optics.  http://vjbo.osa.org/virtual_issue.cfm)

  11. V. Chegel, B. Lucas, L. J. Guo, A. Lopatynskyi, O. Lopatynska, L. Poperenko, “Detection of biomolecules using optoelectronic biosensor based on localized surface plasmon resonance Nanoimprint lithography approach,” Semiconductor Physics, Quantum Electronics & Optoelectronics, 12, 91-97, 2009.

  12. T. Kim, L. J. Cheng, M.-T. Kao, E. F. Hasselbrink, L. J. Guo, and E. Meyhofer, “Biomolecular motor-driven molecular sorter,” Lab on a Chip, 9, 1282-1285, 2009.

  13. C. P.-Hernandez, P.-F. Fu, and L. J. Guo, “Easy duplication of stamps using UV-cured fluoro-silsesquioxane for nanoimprint lithography,” J. Vac. Sci. & Technol. B. 26, 2426-2429, 2008.

  14. M.-G. Kang and L. J. Guo, “Metal Transfer Assisted Nanolithography on Rigid and Flexible Substrates,” J. Vac. Sci. & Technol. B. 26, 2421-2425, 2008.

  15. M.-G. Kang, M.-S. Kim, J. Kim, and L. J. Guo, “Organic solar cells using nanoimprinted transparent metal electrode,” Adv. Mater. 20, 4408–4413, 2008. http://dx.doi.org/10.1002/adma.200800750

  16. S. –W. Huang, S.-L. Chen, T. Ling, A. Maxwell, M. O’Donnell, L. J. Guo, S. Ashkenazi, “Low-noise wideband ultrasound detection using polymer microring resonators,” Appl. Phys. Lett.  92, 193509, 2008.

  17. Y. Hou, J.-S. Kim, S.-W. Huang, S. Ashkenazi, L. J. Guo, M. O’Donnell, “Characterization of a broadband all-optical ultrasound transducer-from optical and acoustical properties to imaging,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr. 55, 1867-1877, 2008.

  18. D.-W. Li and L. J. Guo, “Organic Thin-Film Transistors and Polymer Light-Emitting Diodes Patterned by Polymer Inking and Stamping,” J. Phys. D: Appl. Phys, 41, 105115 (7pp), 2008.

  19. S. H. Ahn, and L. J. Guo, “High Speed Roll-to-Roll Nanoimprint Lithography on Flexible Plastic Substrate,” Adv. Mater, 20, 2044–2049, 2008. (Reported by Photonics Spectra and Materials Today).

  20. M. O’Donnell, Y. Hou, J.-S. Kim, S. Ashkenazi, S.-W. Huang, L. J. Guo, “Optoacoustic generation of high frequency sound for 3-D ultrasonic imaging in medicine,” Eur. Phys. J. Special Topics, 153, 53–58, 2008.

  21. M.-S. Kim, M.-G. Kang, L. J. Guo, and J. Kim, “Choice of electrode geometry for accurate measurement of organic photovoltaic cell performance,” Appl. Phys. Lett. 92, 133301-1, 2008.

  22. A. Maxwell, S.-W. Huang, T. Ling, J.-S. Kim, S. Ashkenazi, and L. J. Guo, “Polymer Microring Resonators for High-Frequency Ultrasound Detection and Imaging,” IEEE J. Special Topics in Quantum Electronics (on biophtonics), 14, 191-197, 2008

  23. B. D. Lucas, J. Kim, C. Chin and L. J. Guo, “Nanoimprint Lithography Based Approach for the Fabrication of Large-Area, Uniformly-Oriented Plasmonic Arrays”, Adv. Mater. 20, 1129–1134, 2008. (Reported by Mater. Today, and Mater. Views)

  24. T. Ling and L. J. Guo, “A unique resonance mode observed in a prism-coupled micro-tube resonator sensor with superior index sensitivity”, Opt. Exp. 15, 17424-17432, 2007.

  25. P. Mukherjee, M. G. Kang, T. H. Zurbuchen, L. J. Guo and F. A. Herrero “Fabrication of High Aspect Ratio Si Nanogratings with Smooth Sidewalls  for a Deep UV-Blocking Particle Filter,” J. Vac. Sci. & Technol. B. 25(6), 2645-2648,2007. 

  26. C. P.-Hernandez, J. Kim, P.-F. Fu, and L. J. Guo, “Non-residual layer imprinting and new replication capabilities demonstrated for fast thermal curable polydimethysiloxanes,” J. Vac. Sci. & Technol. B. 25(6), 2402-2406, 2007.

  27. M.-G. Kang and L. J. Guo, “Semi-Transparent Cu Electrode on a Flexible Substrate and Its
    Application in Organic Light Emitting Diode,” J. Vac. Sci. & Technol. B. 25(6), 2637-2641, 2007.

  28. S. H. Ahn, J. Kim and L. J. Guo, “Bilayer Metal Wire-grid Polarizer Fabricated by Roll-to-Roll Nanoimprint Lithography on Flexible Plastic Substrate,” J. Vac. Sci. & Technol. B. 25(6), 2388-2391, 2007.

  29. L. J. Cheng and L. J. Guo, “Rectified Ion Transport through Concentration Gradient in Homogeneous Silica Nanochannels,” Nano Lett. 7(10), 3165-3171, 2007. 

  30. Y. Hou, J.-S. Kim, S. Ashkenazi, S.-W. Huang, L. J. Guo, and M. O’Donnell, “Broadband All-Optical Ultrasound Transducers,” Appl. Phys. Lett. 91, 073507, 2007. (Reported by Nature Photonics)

  31. M.-G. Kang, and L. J. Guo, “Nanoimprinted Semi-Transparent Metal Electrode and its Application in OLED,” Adv. Mater. 19, 1391-1396, 2007. (Reported by MIT Technol. Review, and Laser Focus World)

  32. M.-S. Kim, J.-S. Kim, J. Cho, M. Stein, L. J. Guo, and J. Kim, “Flexible conjugated polymer photovoltaic cells with controlled heterojunctions fabricated using nanoimprint lithography,” Appl. Phys. Lett. 90, 123113-1, 2007.

  33. A. D. Taylor, B. D. Lucas, L. J. Guo, and L. T. Thompson, “Nanoimprinted Electrodes for Micro Fuel Cell Applications,” J. Power Sources, 171, 218-223, 2007, online (doi:10.1016/j.jpowsour.2007.01.026)

  34. C. P.-Hernandez, J.-S. Kim, L. J. Guo, and P.-F. Fu, “High throughput and etch selective nanoimprinting and stamping based on fast thermal-curable polydimethysiloxanes,” Adv. Mater. 19, 1222-1227, 2007.

  35. C. Y. Chao, S. Ashkenazi, S.-W. Huang, M. O'Donnell, and L. J. Guo, “High-frequency ultrasound Sensors using polymer microring resonators,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr. 54, 957-965, 2007.

  36.  L. J. Guo, “Nanoimprint Lithography: Methods and Material Requirement,” Adv. Mater. 19, 495-513, 2007. 

  37. P. Choi, P.-F. Fu, and L. J. Guo, “Siloxane Copolymers for Nanoimprint Lithography,” Adv. Func. Mater. 17, 65-70, 2007.

  38. Y. Hou, J.-S. Kim, S. Ashkenazi, M. O’Donnell, and L. J. Guo, “Optical generation of high frequency ultrasound using two-dimensional gold nanostructure,” Appl. Phys. Lett. 89, 93901-1-3, 2006.

  39. D.-W. Li, and L. J. Guo, “Micron-scale Organic Thin Film Transistors with Conducting Polymer Electrodes Patterned by Polymer Inking,” Appl. Phys. Lett. 88, 63513-1-3, 2006.

  40. C. Y. Chao, and L. J. Guo, “Design and Optimization of Microring Resonators in Biochemical Sensing Application,” J. Lightwave Tech. Vol. 24(3), 1395-1401, 2006.

  41. X. Cheng, D.-W. Li, and L. J. Guo, “A hybridmask–mould lithography scheme and its application in nanoscale organic thin film transistors,” Nanotechnology, 17, 927-932, 2006.

  42. C. Y. Chao, W. Fung, and L. J. Guo, “High Q-Factor Polymer Microring Resonators for Biochemical Sensing Applications,” IEEE Special Topics in Quantum Electronics. Vol. 12, pp. 134-142, 2006.

  43. J. Yang, and L. J. Guo, “Optical Sensors Based on Active-Microcavities,” IEEE Special Topics in Quantum Electronics. Vol. 12, pp. 143-147, 2006.

  44. X. Cheng, L. J. Guo, and P.-F. Fu, “Room Temperature and Low Pressure Nanoimprinting Based on Cationic Photopolymerization of Novel Epoxysilicone Monomers,” Adv. Mater., Vol. 17, pp. 1419-1424, 2005.

  45. L.-J. Cheng, M.-T. Kao, E. Meyhöfer, and L. J. Guo, “Highly Efficient Guiding of Microtubule Transport with Imprinted CYTOP Nanotracks,” Small, Vol. 1(4), pp.409-414, 2005.

  46. S. Ashkenazi, C. Y. Chao, L. J. Guo, and M. O'Donnell, “Ultrasound Detection Using Polymer Microring Optical Resonator,” Appl. Phys. Lett. Vol. 85(32), pp. 5418-5420, 2004.

  47. L. J. Guo, “Topical Review: Recent progress in nanoimprint technology and its applications,” J. Phys. D: Appl. Phys, Vol. 37 (11), pp. R123-R141, 2004.

  48. J. D. Hoff, L. J. Cheng, E. Meyhofer, L. J. Guo, and A. J. Hunt, “Nanoscale protein patterning by imprint lithography,” Nano Letters. Vol. 4(5), pp. 953-957, 2004.

  49. C. Y. Chao, and L. J. Guo, “Reduction of Surface Scattering Loss in Polymer Microrings Using Thermal-Reflow Technique,” IEEE Photon. Technol. Lett. Vol. 16(6), pp. 1498-1500, 2004.

  50. X. Cheng and L. J. Guo, “A Combined-Nanoimprint-and-Photolithography Patterning Technique,” Microelectron. Eng. Vol. 71(3-4) pp. 277-282, 2004.

  51. X. Cheng and L. J. Guo, “One-Step Lithography for Various Size Patterns with a Hybrid Mask-Mold,” Microelectron. Eng. Vol. 71(3-4) pp. 288-293, 2004.

  52. C. Y. Chao, and L. J. Guo, “Thermal-flow Technique for Reducing Surface Roughness and Controlling Gap Size in Polymer Microring Resonators," Appl. Phys. Lett. Vol.84(14), pp. 2479-2481, 2004.

  53. L. J. Guo, X. Cheng, and C-F Chou, “Fabrication of Size-Controllable Nanofluidic Channels by Nanoimprinting and Its Application for DNA Stretching,” Nano Letters, Vol. 4(1), pp. 69-73, 2004. 

  54. L. Tan, Y. P. Kong, L.-R. Bao, X. D. Huang, L. J. Guo, S. W. Pang, and A. F. Yee, “Imprinting polymer film on patterned substrates,” J. Vac. Sci. & Technol. B. 21(6), pp. 2742-2748, 2003

  55. L.-R. Bao, L. Tan, X. D. Huang, Y. P. Kong, L. J. Guo, S. W. Pang, and A. F. Yee, “Polymer inking as a micro- and nanopatterning technique,” J. Vac. Sci. & Technol. B. 21(6), pp. 2749-2754, 2003

  56. C. Y. Chao, and L. J. Guo, “Biochemical Sensors Based on Polymer Microrings with Sharp Asymmetrical Resonances”, Appl. Phys. Lett., Vol. 83, pp.1527-1529, 2003.

  57. C. Y. Chao, and L. J. Guo, “Polymer Micro-ring Resonators Fabricated by Nanoimprint Technique”, J. Vac. Sci. & Technol. B. 20(6), pp. 2862-2866, 2002.

  58. X. D. Huang, L.-R. Bao, X. Cheng, L. J. Guo, S. W. Pang, and A. F. Yee, “Reversal Imprinting by Transferring Polymer from Mold to Substrate,” J. Vac. Sci. & Technol. B. 20(6), pp. 2872-2876, 2002

  59. X. Cheng, Y. Hong, J. Kanicki, and L. J. Guo, “High-Resolution Organic Polymer Light-Emitting Pixels Fabricated by Imprinting Technique”, J. Vac. Sci. & Technol. B, 20(6), pp. 2877-2880, 2002

  60. L. P. Rokhinson, L. J. Guo, S. Y. Chou, and D. C. Tsui, “Spintronics with Si quantum dots,” Microelectronic Engineering, vol. 63, pp. 147-153, 2002.

  61. L.-R. Bao, X. Cheng, X. D. Huang, L. J. Guo, S. W. Pang, and A. F. Yee “Nanoimprinting over Topography and Multilayer 3D Printing,” J. Vac. Sci. & Technol. B. 20(6), pp. 2881-2886, 2002

  62. L. P. Rokhinson, L. J. Guo, S. Y. Chou, and D. C. Tsui, E. Eisenberg, R. Berkovits, and B. L. Altshuler, “Coherent Electron Transport in a Si Quantum Dot Dimer”, Phys. Rev. Lett. 88, pp. 186801-04, 2002.

  63. L. J. Guo, X. Cheng, and C. Y. Chao, "Fabrication of photonic nanostructures in NLO polymer," J. Modern Optics. Vol. 49, pp. 663-673, 2002.

  64. X. Cheng, and L. J. Guo, "Electrostatic Self-assembly of Nanocomposite Polymers in Grating Structures," J. Vac. Sci. & Technol. B, 19, pp. 2736-2740, 2001.