Prof. ZHANG, Qihang (張啟航)
Research Assistant Professor, Department of Biomedical Engineering, CUHK
E-mail: qhzhang[a]cuhk.edu.hk
Tel: 3943 5072
Location: SHB208
Group website: Laser Metrology and Biomedicine (LAMB) Lab
Personal website: click this link.
About
ZHANG received his Bachelor degree in Department of Physics from Tsinghua University in 2018 and his PhD in Electrical Engineering and Computer Science from Massachusetts Institute of Technology in 2023, followed by a postdoctoral training at Singapore-MIT Alliance of Research and Technology and Tsinghua University before joining CUHK in 2025. His research interests focus on scattering optical inspection for biosensing, nanometrology, and manufacturing. 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 physical mechanisms and models for optical scattering phenomena. Development of AI + Optics algorithm for scattering-related optical inspection; Development of advanced optical inspection systems for biosensing, nanometrology, and manufacturing;
Course Teaching in CUHK
BMEG4320 AI & Imaging for Biomedical Engineering
BMEG2300 Circuits and Signals for Biomedical Engineering
BMEG3440 Global Engineering Medical Innovation
BMEG5730 Medical Devices and Sensor Networks
BMEG5920 & BMEG5930: BME M.Sc. Project
AIMS5790 Artificial Intelligence Project I
Selected Publications
+ indicates the equal contribution; * indicates the corresponding author(s).
- Q. Zhang, H. Yue, N. Liu, D. Xu, R. Zhou, L. Cao, and G. Barbastathis*."Decorrelation in Complex Wave Scattering." Arxiv preprint. 2504.11330 (2025).
- Q. Zhang, A. Pandit, Z. Liu, Z. Guo, S. Muddu, Y. Wei, D. Pereg, N. Nazemifard, C. Papageorgiou, Y. Yang, W. Tang, R. D. Braatz, A. S. Myerson and G. Barbastathis*. "Non-invasive estimation of the powder size distribution from a single speckle image." Light: Science and Applications. 13, 200 (2024).
- Q. Zhang, J. C. Gamekkanda, A. Pandit, W. Tang, C. Papageorgiou, C. Mitchell, Y. Yang, M. Schwaerzler, T. Oyetunde, R. D. Braatz, A. S. Myerson and G. Barbastathis*."Extracting particle size distribution from laser speckle with a physics-enhanced autocorrelation-based estimator (PEACE)." Nature Communications. 14, 1159 (2023).
- J. Yang+, G. Chen+, T. Han+, Q. Zhang, Y. Zhang, L. Jiang, B. Lyu, H. Li, K. Watanabe, T. Taniguchi, Z. Shi, T. Senthil, Y. Zhang, F. Wang, and L. Ju*. "Spectroscopy signatures of electron correlations in a trilayer graphene/hBN moiré superlattice." Science. 375, 6586 (2022).
- Q. Zhang, Y. Zhang, J. Li, R. Soref, T. Gu, and J. Hu*. "Broadband nonvolatile photonic switching based on optical phase change materials: beyond the classical figure-of-merit. " Optics Letters. 43, 1 (2017).
- Q. Zhang, Z. Liu, Y. Sun, H. Yang, J. Jiang, S. Mo, Z. Hussain, X. Qian, L. Fu, S. Yao, M. Lu, C. Felser, B. Yan, Y. Chen*, and L. Yang*. "Lifshitz Transitions Induced by Temperature and Surface Doping in Type-II Weyl Semimetal Candidate Td-WTe2." Physica Status Solidi Rapid Research Letter. 11, 12 (2017).
