Dr. Yanjun Han Profile

Dr. Yanjun Han

at Tsinghua Univ

SPIE Involvement:

Author

Publications (9)

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 | 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 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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SPIE Journal Paper | 1 February 2011

Reflector design for large-size spherical surface sources

Liangliang Cao, Yanjun Han, Zexin Feng, Yi Luo

OE, Vol. 50, Issue 02, 023001, (February 2011) https://doi.org/10.1117/12.10.1117/1.3541803

KEYWORDS: Reflectors, Reflector design, Spherical lenses, Absorption, Reflection, Light, Optical engineering, Optoelectronics, Monte Carlo methods, Electronics engineering

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Proceedings Article | 17 September 2002 Paper

Characteristics of n-GaN after ICP etching

Yanjun Han, Song Xue, Wenping Guo, Zhi-Biao Hao, Changzheng Sun, Yi Luo

Proceedings Volume 4918, (2002) https://doi.org/10.1117/12.483055

KEYWORDS: Etching, Gallium nitride, Plasma, Resistance, Plasma etching, Edge emitting semiconductor lasers, Annealing, Oxides, Ions, Metals

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Proceedings Article | 17 September 2002 Paper

Fabrication of high-brightness blue InGaN/GaN MQW LEDs

Yi Luo, Yanjun Han, Wenping Guo, Changzheng Sun, Zhi-Biao Hao, Hui Hu

Proceedings Volume 4918, (2002) https://doi.org/10.1117/12.483056

KEYWORDS: Blue light emitting diodes, Light emitting diodes, Etching, Gallium nitride, Plasma etching, Electrodes, Semiconducting wafers, Quantum wells, Diodes, Plasma

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Proceedings Article | 4 May 1999 Paper

Picosecond single-pulse generation by cavity dumping of an active-passive mode-locked YAG laser

Baolu Yin, Yanjun Han

Proceedings Volume 3613, (1999) https://doi.org/10.1117/12.347690

KEYWORDS: Mode locking, Picosecond phenomena, YAG lasers, Bragg cells, Acoustics, Modulators, Pulsed laser operation, Laser energy, Laser damage threshold

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Showing 5 of 9 publications

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