Prof. Zongfu Yu Profile

Prof. Zongfu Yu

at Univ of Wisconsin-Madison

SPIE Involvement:

Author | Science Fair Judge

Publications (27)

Proceedings Article | 13 March 2024 Presentation

Spontaneous emergence of eyes in reinforcement learning agents

Zongfu Yu

Proceedings Volume PC12903, PC129030O (2024) https://doi.org/10.1117/12.3000685

KEYWORDS: Sensory processes, Image processing, Education and training, Data processing, Connectors, Bridges, Animals

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Proceedings Article | 9 March 2024 Presentation

Multimodal light-sensing pixels

Zongfu Yu

Proceedings Volume PC12895, PC128950C (2024) https://doi.org/10.1117/12.3000689

KEYWORDS: Imaging arrays, Spatial resolution, Prisms, Photography, Photodetectors, Optical sensors, Optical gratings, Nanostructures, Nanophotonics, Lenses

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Proceedings Article | 15 June 2023 Presentation

Sparsity for ultrafast material identification

Yurui Qu, Qingyi Zhou, Jin Xiang, Zongfu Yu

Proceedings Volume 12516, 1251605 (2023) https://doi.org/10.1117/12.2660145

KEYWORDS: Ultrafast phenomena, Mid-IR, Spectroscopes, FT-IR spectroscopy, Computer programming, Chemical analysis, Ultrafast laser spectroscopy, Forensic science, Compressed sensing, Calibration

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Proceedings Article | 5 March 2022 Presentation

Tunable narrowband IR absorption in graphene nanoribbon/silicon photonic crystal coupled resonators

Arun Nagpal, Ming Zhou, Ognjen Ilic, Zongfu Yu, Harry Atwater

Proceedings Volume PC12003, PC120030E (2022) https://doi.org/10.1117/12.2610369

KEYWORDS: Graphene, Photonic crystals, Absorption, Resonators, Crystals, Thin films, Surface plasmons, Silicon photonics, Plasmons, Modulation

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SPIE Journal Paper | 7 October 2021 Open Access

Colorful surfaces for radiative cooling

Lyu Zhou, Jacob Rada, Haomin Song, Boon Ooi, Zongfu Yu, Qiaoqiang Gan

JPE, Vol. 11, Issue 04, 042107, (October 2021) https://doi.org/10.1117/12.10.1117/1.JPE.11.042107

KEYWORDS: Absorption, Solar energy, Near infrared, Solar radiation, Photonics, Visible radiation, Sun, Silica, Infrared radiation, Polymers

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Proceedings Article | 3 August 2021 Presentation + Paper

Actively tunable narrowband thermal emission from coupled-mode metasurfaces

Arun Nagpal, Ming Zhou, Ognjen Ilic, Zongfu Yu, Harry Atwater

Proceedings Volume 11795, 117951W (2021) https://doi.org/10.1117/12.2594522

KEYWORDS: Graphene, Photonic crystals, Finite element methods, Scattering, Resonators, Reflectivity, Dielectrics, Spatial coherence, Absorption, Thermal optics, Tunable metamaterials

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Proceedings Article | 20 March 2020 Presentation

Artificial neural computing with nanophotonics (Conference Presentation)

Zongfu Yu

Proceedings Volume 11284, 1128408 (2020) https://doi.org/10.1117/12.2550790

KEYWORDS: Nanophotonics, Wavefronts, Transform theory, Artificial neural networks, Stochastic processes

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Proceedings Article | 10 March 2020 Presentation

Adjoint state method for the inverse design of photonic devices (Conference Presentation)

Zongfu Yu

Proceedings Volume 11283, 1128304 (2020) https://doi.org/10.1117/12.2550762

KEYWORDS: Structured photonic materials, Nanophotonics, Wavefronts, Transform theory, Artificial neural networks, Stochastic processes

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Proceedings Article | 9 September 2019 Presentation

Metasurface for artificial neural computing (Conference Presentation)

Zongfu Yu

Proceedings Volume 11080, 110802E (2019) https://doi.org/10.1117/12.2528792

KEYWORDS: Nanophotonics, Wavefronts, Transform theory, Artificial neural networks, Stochastic processes

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Proceedings Article | 9 September 2019 Presentation + Paper

Accelerating vapor condensation with daytime radiative cooling

Ming Zhou, Haomin Song, Xingyu Xu, Alireza Shahsafi, Zhenyang Xia, Zhenqiang Ma, Mikhail Kats, Jia Zhu, Boon Ooi, Qiaoqiang Gan, Zongfu Yu

Proceedings Volume 11121, 1112107 (2019) https://doi.org/10.1117/12.2525125

KEYWORDS: Black bodies, Directed energy weapons, Solar radiation, Aluminum, Temperature metrology, Humidity, Solar energy, Mid-IR, Absorption, Silver

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Proceedings Article | 5 September 2019 Presentation + Paper

Coupled mode theory for metasurface design

Ming Zhou, Samuel Belling, Haotian Chen, Zongfu Yu

Proceedings Volume 11080, 110802L (2019) https://doi.org/10.1117/12.2528909

KEYWORDS: Nanorods, Numerical simulations, Finite element methods, Resonators, Instrument modeling, Optical resonators, Reflectivity, Computer simulations, Solids, Optical design

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Proceedings Article | 3 September 2019 Presentation + Paper

Subwavelength angle-sensing photodetectors inspired by internally coupled ears in small animals

Soongyu Yi, Ming Zhou, Zongfu Yu, Pengyu Fan, Nader Behdad, Dianmin Lin, Ken Wang, Shanhui Fan, Mark Brongersma

Proceedings Volume 11089, 110890B (2019) https://doi.org/10.1117/12.2529594

KEYWORDS: Nanowires, Absorption, Photodetectors, Ear, Silicon, Resonators, Polarization, Optical instrument design, Optical resonators, Sensors

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Proceedings Article | 9 June 2017 Presentation

Prospects and fundamental limitations of room temperature, non-avalanche, semiconductor photon-counting sensors (Conference Presentation)

Jiaju Ma, Yang Zhang, Xiaoxin Wang, Lei Ying, Saleh Masoodian, Zhiyuan Wang, Dakota Starkey, Wei Deng, Rahul Kumar, Yang Wu, Seyed Amir Ghetmiri, Zongfu Yu, Shui-Qing Yu, Gregory Salamo, Eric Fossum, Jifeng Liu

Proceedings Volume 10212, 1021209 (2017) https://doi.org/10.1117/12.2264958

KEYWORDS: Silicon, Thermography, Absorption, Photodetectors, Semiconductors, Systems modeling, Sensors, Single photon, Quantum efficiency, Capacitance

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Proceedings Article | 9 November 2016 Presentation

Quantum antenna and metasurface based on two level systems (Conference Presentation)

Zongfu Yu

Proceedings Volume 9920, 99200T (2016) https://doi.org/10.1117/12.2234787

KEYWORDS: Antennas, Quantum dots, Chemical species, Current controlled current source

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Proceedings Article | 5 October 2015 Presentation

Spectrometer with nanophotonic structure based on compressive sensing (Presentation Recording)

Zhu Wang, Zongfu Yu

Proceedings Volume 9555, 95550R (2015) https://doi.org/10.1117/12.2186354

KEYWORDS: Compressed sensing, Spectroscopy, Nanophotonics, Spectral resolution, Nanostructures, Optical resolution, Video, Optical sensing, Optical imaging, Photon counting

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Proceedings Article | 31 August 2015 Presentation + Paper

Magneto-optical switches in metal-dielectric-metal plasmonic waveguides

Ali Haddadpour, Vahid Foroughi Nezhad, Zongfu Yu, Georgios Veronis

Proceedings Volume 9546, 95461S (2015) https://doi.org/10.1117/12.2190316

KEYWORDS: Magnetism, Wave propagation, Metals, Waveguides, Dielectrics, Plasmonic waveguides, Modulation, Switches, Dispersion, Interfaces

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Proceedings Article | 16 March 2015 Paper

Sufficient condition for perfect antireflection by optical resonance at dielectric interface

Ken Wang, Zongfu Yu, Sunil Sandhu, Victor Liu, Shanhui Fan

Proceedings Volume 9358, 935804 (2015) https://doi.org/10.1117/12.2076242

KEYWORDS: Antireflective coatings, Interfaces, Dielectrics, Reflection, Solar cells, Photodetectors, Silicon, Infrared radiation, Human-machine interfaces, Nanorods

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Proceedings Article | 7 October 2014 Paper

Light trapping in photonic crystals

Ken Wang, Zongfu Yu, Victor Liu, Aaswath Raman, Yi Cui, Shanhui Fan

Proceedings Volume 9177, 91770N (2014) https://doi.org/10.1117/12.2061160

KEYWORDS: Photonic crystals, Absorption, Dielectrics, Mirrors, Refractive index, Solar cells, Antireflective coatings, Silica, Applied physics, Electrical engineering

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Proceedings Article | 23 February 2012 Paper

GaAs thin film nanostructure arrays for III-V solar cell applications

Dong Liang, Yangsen Kang, Yijie Huo, Ken Xinze Wang, Anjia Gu, Meiyueh Tan, Zongfu Yu, Shuang Li, Jieyang Jia, Xinyu Bao, Shuang Wang, Yan Yao, Shanhui Fan, Yi Cui, James Harris

Proceedings Volume 8269, 82692M (2012) https://doi.org/10.1117/12.909743

KEYWORDS: Nanostructures, Absorption, Thin films, Gallium arsenide, Solar cells, Nanostructured thin films, Thin film solar cells, Nanostructuring, Optical spheres, Light wave propagation

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Proceedings Article | 22 February 2012 Paper

From electromagnetically induced transparency to superscattering with a single structure: a coupled-mode theory for doubly resonant structures

Lieven Verslegers, Zongfu Yu, Zhichao Ruan, Peter Catrysse, Shanhui Fan

Proceedings Volume 8269, 82690X (2012) https://doi.org/10.1117/12.909576

KEYWORDS: Transparency, Electromagnetism, Calcium, Metamaterials, Free space, Photonic nanostructures, Electromagnetic scattering, Scattering, Magnetism, Resonators

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Proceedings Article | 30 August 2010 Paper

Fundamental limit of nanophotonic light-trapping in solar cells

Zongfu Yu, Aaswath Raman, Shanhui Fan

Proceedings Volume 7772, 77720Z (2010) https://doi.org/10.1117/12.861457

KEYWORDS: Absorption, Nanophotonics, Solar cells, Cladding, Dielectrics, Scattering, Waveguide modes, Electromagnetism, Refractive index, Thin films

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Proceedings Article | 16 February 2010 Paper

Dynamic photonic structure for integrated photonics

Zongfu Yu, Shanhui Fan

Proceedings Volume 7605, 76050O (2010) https://doi.org/10.1117/12.846032

KEYWORDS: Modulation, Waveguides, Phase shift keying, Silicon, Photonic crystals, Integrated photonics, Refractive index, Finite-difference time-domain method, Geometrical optics, Frequency conversion

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Proceedings Article | 12 February 2010 Paper

Deep-subwavelength focusing and steering of light in an aperiodic metallic waveguide array

Lieven Verslegers, Peter Catrysse, Zongfu Yu, Shanhui Fan

Proceedings Volume 7604, 76040O (2010) https://doi.org/10.1117/12.842692

KEYWORDS: Waveguides, Gold, Dispersion, Geometrical optics, Metals, Dielectrics, Wave propagation, Integrated optics, Plasmonics, Near field optics

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Proceedings Article | 3 September 2009 Paper

Nanoscale slit arrays as planar far-field lenses

Peter Catrysse, Lieven Verslegers, Zongfu Yu, Justin White, Edward Barnard, Mark Brongersma, Shanhui Fan

Proceedings Volume 7394, 73940B (2009) https://doi.org/10.1117/12.826662

KEYWORDS: Lenses, Gold, Confocal microscopy, Metals, Plasmonics, Microlens, Ion beams, Silica, Scanning electron microscopy, Magnetism

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Proceedings Article | 18 February 2009 Paper

Complete optical isolation created by indirect interband photonic transitions

Zongfu Yu, Shanhui Fan

Proceedings Volume 7220, 72200W (2009) https://doi.org/10.1117/12.807739

KEYWORDS: Modulation, Waveguides, Silicon, Phase shift keying, Signal processing, Integrated optics, Frequency conversion, Geometrical optics, Nanophotonics, Resonators

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Proceedings Article | 12 February 2008 Paper

Gain-induced switching in metal-dielectric-metal plasmonic waveguides

Zongfu Yu, Georgios Veronis, Mark Brongersma, Shanhui Fan

Proceedings Volume 6896, 68960L (2008) https://doi.org/10.1117/12.764052

KEYWORDS: Plasmonic waveguides, Metals, Near field optics, Plasmonics, Semiconductor materials, Waveguides, Switching, Switches, Magnetism, Semiconductors

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Proceedings Article | 9 February 2007 Paper

Design of mid-infrared photodetectors enhanced by surface plasmons on grating structures

Zongfu Yu, Georgios Veronis, Mark Brongersma, Shanhui Fan

Proceedings Volume 6475, 64750Q (2007) https://doi.org/10.1117/12.698016

KEYWORDS: Absorption, Surface plasmons, Photodetectors, Metals, Mid-IR, Sensors, Optical instrument design, Fabry–Perot interferometers, Gold, Semiconductor materials

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Showing 5 of 27 publications

Conference Committee Involvement (5)

New Concepts in Solar and Thermal Radiation Conversion V

23 August 2023 | San Diego, California, United States

New Concepts in Solar and Thermal Radiation Conversion IV

4 August 2021 | San Diego, California, United States

New Concepts in Solar and Thermal Radiation Conversion III

24 August 2020 | Online Only, California, United States

New Concepts in Solar and Thermal Radiation Conversion II

11 August 2019 | San Diego, California, United States

New Concepts in Solar and Thermal Radiation Conversion and Reliability

19 August 2018 | San Diego, California, United States

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