Prof. Zhiwen Liu Profile

Prof. Zhiwen Liu

Professor at Pennsylvania State Univ

SPIE Involvement:

Conference Chair | Editor | Author | Student Chapter Advisor

Publications (47)

Proceedings Article | 6 October 2023 Presentation

Multi-dimensional snapshot imaging with encoding metasurfaces

Xingjie Ni, Lidan Zhang, Chen Zhou, Yimin Ding, Hyun-Ju Ahn, Shengyuan Chang, Yao Duan, Xi Chen, Md Tarek Rahman, Tunan Xia, Cheng-Yu Wang, Zhiwen Liu

Proceedings Volume PC12681, PC1268107 (2023) https://doi.org/10.1117/12.2681472

KEYWORDS: Cameras, Polarization, Nanostructures, Image retrieval

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Proceedings Article | 6 October 2023 Poster

Ultrafast imaging using spatiotemporal encoding and deep learning

Chen Zhou, Lidan Zhang, Tunan Xia, Cheng-Yu Wang, Xingjie Ni, Zhiwen Liu

Proceedings Volume PC12681, PC126810G (2023) https://doi.org/10.1117/12.2679921

KEYWORDS: Ultrafast imaging, Deep learning, Ultrafast phenomena, Ultrafast measurement systems, Device simulation, Tolerancing, Imaging systems, Fabrication, Education and training, Cameras

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Proceedings Article | 3 October 2022 Presentation

Divided pulse soliton self-frequency shift source for nonlinear imaging and spectroscopy

Landon Hernandez, Atriya Ghosh, Victor Bucklew, Cheng-Yu Wang, Chen Zhou, Zhiwen Liu

Proceedings Volume PC12228, PC122280H (2022) https://doi.org/10.1117/12.2637017

KEYWORDS: Imaging spectroscopy, Spectroscopy, Solitons, Ultrafast phenomena, Ultrafast lasers, Ultrafast imaging, Solid state lasers, Solid state electronics, Raman spectroscopy, Optical spectroscopy imaging

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Proceedings Article | 3 October 2022 Presentation

Space-time encoding metasurface-enabled compressive ultrahigh-speed imaging

Xingjie Ni, Yao Duan, Xingwang Zhang, Cheng-Yu Wang, Zhiwen Liu

Proceedings Volume PC12228, PC122280N (2022) https://doi.org/10.1117/12.2636430

KEYWORDS: Computer programming, Ultrafast phenomena, Ultrafast imaging, Singular optics, Reconstruction algorithms, Modulation, Imaging systems, Femtosecond phenomena, Compressed sensing, Cameras

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Proceedings Article | 3 October 2022 Presentation

Nonlocal exciton dynamics in monolayer WS_2

Hans Hallen, Landon Hernandez, Da Zhou, Mauricio Terrones, Zhiwen Liu

Proceedings Volume PC12228, PC1222803 (2022) https://doi.org/10.1117/12.2635671

KEYWORDS: Excitons, Spectroscopy, Quantitative analysis, Prisms, Charge-coupled devices

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Proceedings Article | 3 October 2022 Presentation

Raman spectroscopy and imaging enhanced by hybrid optoplasmonic resonance

Wenbo Mao, Yihang Li, Zhiwen Liu, Lan Yang

Proceedings Volume PC12228, PC122280A (2022) https://doi.org/10.1117/12.2646631

KEYWORDS: Raman spectroscopy, Imaging spectroscopy, Surface enhanced Raman spectroscopy, Resonance enhancement, Spectroscopy, Sensors, Raman scattering, Proteins, Plasmonics, Optical sensors

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Proceedings Article | 1 August 2021 Presentation

Fluorescence nonlocality in two-dimensional Materials

Hans Hallen, Landon Hernandez, William Murray, Zhiwen Liu

Proceedings Volume 11825, 118250W (2021) https://doi.org/10.1117/12.2595933

KEYWORDS: Luminescence, Near field scanning optical microscopy, Transition metals, Signal generators, Signal detection, Second-harmonic generation, Near field, Mode locking, Harmonic generation, Femtosecond phenomena

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Proceedings Article | 1 August 2021 Presentation

Development of a divided pulse soliton self frequency shift source for multiline nonlinear imaging

Atriya Ghosh, Victor Bucklew, Zhiwen Liu

Proceedings Volume 11825, 118250R (2021) https://doi.org/10.1117/12.2597289

KEYWORDS: Solitons, Oscillators, Ultrafast imaging, Raman scattering, Polarization, Photonic crystal fibers, Optical imaging, Optical amplifiers, Nonlinear optics, Mode locking

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Proceedings Article | 25 August 2020 Presentation

Ultrafast light manipulation by using nonlinear chiral meta-mirror

Cheng-Yu Wang, Lei Kang, Xuexue Guo, Xingjie Ni, Douglas Werner, Zhiwen Liu

Proceedings Volume 11497, 114970M (2020) https://doi.org/10.1117/12.2570776

KEYWORDS: Ultrafast phenomena, Dielectric polarization, Amorphous silicon, Split ring resonators, Silver, Silica, Light-matter interactions, Absorption, Picosecond phenomena, Modulation

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Proceedings Article | 20 August 2020 Presentation

Convolutional neural network reconstruction of ultrashort optical pulses

Joshua Noble, Chen Zhou, William Murray, Zhiwen Liu

Proceedings Volume 11497, 114970L (2020) https://doi.org/10.1117/12.2571172

KEYWORDS: Convolutional neural networks, Ultrafast phenomena, Nonlinear optics, Reconstruction algorithms, Ultrafast measurement systems, Nanoprobes, Nonlinear filtering, Phase retrieval

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Proceedings Article | 9 September 2019 Presentation

Characterization of second-order nonlinear optical properties of two-dimensional materials (Conference Presentation)

William Murray, Yimin Ding, Ethan Kahn, Michael Lucking, Yin-Ting Yeh, Josh Noble, Xingjie Ni, Humberto Terrones, Mauricio Terrones, Zhiwen Liu

Proceedings Volume 11122, 111220J (2019) https://doi.org/10.1117/12.2532657

KEYWORDS: Harmonic generation, Second-harmonic generation, Sum-frequency generation, Transition metals, Biological research, Femtosecond phenomena

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Proceedings Article | 17 September 2018 Presentation

Reconfigurable particle assembly for optical applications (Conference Presentation)

Cheng-Yu Wang, Philip Donahue, Chenji Zhang, Jennifer Miller, Nicholas Nye, Rong Tang, Demetrios Christodoulides, Christine Keating, Zhiwen Liu

Proceedings Volume 10753, 107530C (2018) https://doi.org/10.1117/12.2323106

KEYWORDS: Particles, Imaging systems, Nanoparticles, Refractive index, Scattering, Random lasers

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Proceedings Article | 17 September 2018 Presentation

Characterization of second-order nonlinear optical properties of two-dimensional transition metal dichalcogenides (Conference Presentation)

William Murray, Ana Laura-Elias, Kazunori Fujisawa, Michael Lucking, Ethan Kahn, Yimin Ding, Humberto Terrones, Mauricio Terrones, Xingjie Ni, Zhiwen Liu

Proceedings Volume 10753, 107530M (2018) https://doi.org/10.1117/12.2322374

KEYWORDS: Transition metals, Second-harmonic generation, Nonlinear optics, Crystals, Nonlinear crystals, Resonance enhancement, Harmonic generation, Sum-frequency generation, Wavelength tuning, Femtosecond phenomena

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Proceedings Article | 17 September 2018 Presentation

Characterization of band shifting imaging probes under two-photon excitation (Conference Presentation)

Yizhu Chen, Jimin Kim, Dingbowen Wang, Yimin Ding, Xingjie Ni, Jian Yang, Zhiwen Liu

Proceedings Volume 10753, 107530D (2018) https://doi.org/10.1117/12.2322174

KEYWORDS: Two photon imaging, Luminescence, Colorimetry, Computer programming

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