Prof. Lai Wang Profile

Prof. Lai Wang

at Tsinghua Univ

SPIE Involvement:

Author | Editor

Proceedings Article | 27 November 2024 Poster + Paper

Low-loss spot-size converter for thin-film lithium niobate photonic integrated circuits at 780nm with simple fabrication process

Hongbo Qiao, Zhibiao Hao, Jian Wang, Changzheng Sun, Lai Wang, Bing Xiong, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 13236, 132360Z (2024) https://doi.org/10.1117/12.3035776

KEYWORDS: Waveguides, Fabrication, Refractive index, Design, Cladding, Thin films, Etching, Lithium niobate, Waveguide modes, Tolerancing

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Proceedings Article | 27 November 2024 Paper

Ultrafast high response waveguide MUTC photodetector for optical-to-microwave conversion

Han Wen, Zhibiao Hao, Changzheng Sun, Lai Wang, Bing Xiong, Jian Wang, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 13236, 132360E (2024) https://doi.org/10.1117/12.3035752

KEYWORDS: Waveguides, Photodetectors, Microwave radiation, Refractive index, Dark current, Ultrafast phenomena, Light absorption, Frequency response, Indium gallium arsenide

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Proceedings Article | 15 December 2022 Paper

Enhancement on extraction efficiency of quantum cascade detectors utilizing localized built-in electric field

Ruochen Zhao, Zhibiao Hao, Lai Wang, Jian Wang, Bing Xiong, Changzheng Sun, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 12478, 124782K (2022) https://doi.org/10.1117/12.2654757

KEYWORDS: Quantum chromodynamics, Transition metals, Quantum efficiency, Absorption, Sensors, Electric field sensors, Doping, Modulation, Quantum wells, Electron transport

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Proceedings Article | 15 December 2022 Paper

High aspect ratio dry etching of AlGaAs by segmented processing and in-situ sidewall passivation

Zhao Yang, Zhibiao Hao, Jian Wang, Lai Wang, Bing Xiong, Changzheng Sun, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 12478, 124781O (2022) https://doi.org/10.1117/12.2654211

KEYWORDS: Etching, Dry etching, Oxidation, Scanning electron microscopy, Plasma treatment, Photonic crystals

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Proceedings Article | 4 December 2020 Paper

A new method for calculating the precise electrical characteristics of quantum dot micro-LED

Keming Ma, Zixian Wei, Shi Zhang, Zhiyuan Cao, Lei Wang, Chien-Ju Chen, Meng-Chyi Wu, H. Fu, Yi Luo, Lai Wang, Yuhan Dong

Proceedings Volume 11617, 116173S (2020) https://doi.org/10.1117/12.2585520

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Proceedings Article | 10 October 2020 Paper

Design of GaN surface emitting laser based on angular-symmetry-breaking concentric-ring surface grating

Haixu Wang, Jian Wang, Qichao Wang, Changzheng Sun, Bing Xiong, Lai Wang, Yi Luo, Zhibiao Hao, Yanjun Han, Hongtao Li, Jiadong Yu

Proceedings Volume 11545, 1154503 (2020) https://doi.org/10.1117/12.2571935

KEYWORDS: Gallium nitride, Optical design, Semiconducting wafers, Wafer-level optics, Laser resonators

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Proceedings Article | 20 December 2019 Paper

Hybrid integration of high-speed MUTC-PD on SOI

Enfei Chao, Bing Xiong, Changzheng Sun, Zhibiao Hao, Lai Wang, Jian Wang, Yanjun Han, Hongtao Li, Jiadong Yu, Yi Luo

Proceedings Volume 11209, 112091C (2019) https://doi.org/10.1117/12.2543930

KEYWORDS: Photodiodes, Adhesives, Back illuminated sensors, Silicon, Microwave photonics, Optical alignment, Diffraction gratings, Photodetectors, Semiconducting wafers, Optical design

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Proceedings Article | 12 March 2019 Paper

1.3 μm laterally-coupled distributed feedback laser with a triangular prism etched facet

Q. C. Wang, J. Wang, Y. Q. Wang, C. Z. Sun, B. Xiong, Y. Luo, Z. B. Hao, Y. J. Han, L. Wang, H. T. Li

Proceedings Volume 11023, 110233Z (2019) https://doi.org/10.1117/12.2517896

KEYWORDS: Prisms, Waveguides, Plasma etching, Etching, Reflectivity, Semiconducting wafers, Distributed feedback laser diodes

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Proceedings Article | 15 November 2018 Paper

Circular optical phased array for 360° constant amplitude scanning

Xuecheng Liu, Bing Xiong, Changzheng Sun, Zhibiao Hao, Lai Wang, Jian Wang, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 10964, 109644Z (2018) https://doi.org/10.1117/12.2506237

KEYWORDS: Phased array optics, Phased arrays, Silicon, Diffraction, Waveguides, Wavefronts, Electrodes, Modulators, Superposition

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Proceedings Article | 20 September 2018 Presentation + Paper

Analysis of negative differential conductance in a GaN/AlN multi-quantum-well avalanche photodiode

Wangping Wang, Lai Wang, Mo Li, Qian Li, Jianbin Kang, Yi Luo, Jian Zhang

Proceedings Volume 10729, 107290D (2018) https://doi.org/10.1117/12.2320517

KEYWORDS: Gallium nitride, Aluminum nitride, Quantum wells, Avalanche photodiodes, Avalanche photodetectors, Scattering, Polarization

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Proceedings Article | 23 February 2018 Paper

Carrier lifetimes in polar InGaN-based LEDs

Lai Wang, Jie Jin, Zhibiao Hao, Yi Luo

Proceedings Volume 10532, 105321Q (2018) https://doi.org/10.1117/12.2286022

KEYWORDS: Light emitting diodes, Green light emitting diodes, Quantum wells, Internal quantum efficiency, Luminescence, Polarization, Indium gallium nitride, Excitons, Quantum efficiency

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Proceedings Article | 20 February 2018 Paper

Ultra-violet avalanche photodiode based on AlN/GaN periodically-stacked-structure

Xingzhao Wu, Jiyuan Zheng, Lai Wang, Julien Brault, Samuel Matta, Zhibiao Hao, Changzheng Sun, Bing Xiong, Yi Luo, Yianjun Han, Jian Wang, Hongtao Li, Mohamed Khalfioui, Mo Li, Jianbin Kang, Qian Li

Proceedings Volume 10697, 106972M (2018) https://doi.org/10.1117/12.2315656

KEYWORDS: Avalanche photodetectors, Ionization, Aluminum nitride, Avalanche photodiodes, Ultraviolet radiation, Gallium nitride, Signal detection, Scattering

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Proceedings Article | 30 August 2017 Presentation + Paper

A GaAs-based up-converter for mid-infrared detection utilizing quantum cascade transport

Zhibiao Hao, Lili Xie, Chao Wang, Yaqi Liu, Lai Wang, Jian Wang, Bing Xiong, Changzheng Sun, Yanjun Han, Hongtao Li, Yi Luo

Proceedings Volume 10403, 1040309 (2017) https://doi.org/10.1117/12.2273105

KEYWORDS: Infrared technology, Infrared imaging, Infrared detectors, Infrared radiation, Semiconductors, Photons, Mid-IR, Infrared detection, Staring arrays, Near infrared

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Showing 5 of 13 publications

SPIE Conference Volume | 31 December 2023

6th Optics Young Scientist Summit (OYSS 2023)

Conference Committee Involvement (1)

6th Optics Young Scientist Summit

20 October 2023 | Changsha, China

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