Prof. ZHANG, Qihang (張啟航)
Research Assistant Professor, Department of Biomedical Engineering, CUHK
E-mail: qhzhang@cuhk.edu.hk
Tel: 3943 5072
Location: SHB208
Group website: Laser Metrology and Biomedicine (LAMB) Lab
About
Qihang Zhang is currently a Research Assistant Professor at the Laser Metrology and Biomedicine (LAMB) Lab in the Department of Biomedical Engineering at The Chinese University of Hong Kong (CUHK). He received his PhD in Electrical Engineering and Computer Science from Massachusetts Institute of Technology in 2023, followed by a postdoctoral training at Tsinghua University before joining CUHK in 2025. His research interest is in computational scattering optics, including physical models, advanced AI algorithms, and related applications in biomedical sensing and imaging. He has published his work in high-profile journals, including Science, Nature Communications, Light: Science and Applications, Optics Letters, etc.
Professional Education and Training
2018 - 2023 Ph.D. in Electrical Engineering and Computer Science, MIT
2014 - 2018 B.S. in Physics, Tsinghua University
Research Interest
Development of the statistical mechanism of optical scattering phenomena, including their wavelength, polarization, spatial distribution and quantum properties.
Development of AI+Physics algorithm for scattering related optical sensing and imaging tasks;
Development of advanced biomedical sensing and imaging systems for biomedical diagnosis, surgery and therapy;
Course Teaching in CUHK
BMEG4320 AI & Imaging for Biomedical Engineering
BMEG2300 Circuits and Signals for Biomedical Engineering
BMEG3440 Global Engineering Medical Innovation
Selected Publications
1. Qihang, Zhang, Ajinkya Pandit, Zhiguang Liu, Zhen Guo, Shashank Muddu, Yi Wei, Deborah Pereg, Neda Nazemifard, Charles Papageorgiou, Yihui Yang, Wenlong Tang, Richard Braatz, Allan Myerson, and George Barbastathis*. “Non-invasive estimation of the powder size distribution from a single speckle image”. In: Light: Science & Applications 13.1 (2024), p. 200.
2. Qihang, Zhang, Janaka C Gamekkanda, Ajinkya Pandit, Wenlong Tang, Charles Papageorgiou, Chris Mitchell, Yihui Yang, Michael Schwaerzler, Tolutola Oyetunde, Richard D Braatz, Allan Myerson, and George Barbastathis*. “Extracting particle size distribution from laser speckle with a physics-enhanced autocorrelation-based estimator (PEACE)”. In: Nature Communications 14.1 (2023), p. 1159.
3. Jixiang Yang, Guorui Chen, Tianyi Han, Qihang, Zhang, Ya-Hui Zhang, Lili Jiang, Bosai Lyu, Hongyuan Li, Kenji Watanabe, Takashi Taniguchi, Todadri Senthil, Feng Wang, and Long Ju*. “Spectroscopy signatures of electron correlations in a trilayer graphene/hBN moir´e superlattice”. In: Science 375.6586 (2022), pp. 1295–1299
4. Qihang, Zhang, Yifei Zhang, Junying Li, Richard Soref, Tian Gu, and Juejun Hu*. “Broadband nonvolatile photonic switching based on optical phase change materials: beyond the classical figure-of-merit”. In: Optics letters 43.1 (2017), pp. 94–97.
5. Qihang, Zhang, Zhongkai Liu, Yan Sun, Haifeng Yang, Juan Jiang, Sung-Kwan Mo, Zahid Hussain, Xiaofeng Qian, Liang Fu, Shuhua Yao, Minghui Lu, Claudia Felser, Binghai Yan, Yulin Chen*, and Lexian Yang*. “Lifshitz transitions induced by temperature and surface doping in type-II Weyl semimetal candidate Td-WTe2”. In: physica status solidi (RRL)–Rapid Research Letters 11.12 (2017), p. 1700209.
