Principal Investigator

Prof. WANG Cheng (王骋)
Associate Professor. Department of Electrical Engineering, City University of Hong Kong
Senior Members of IEEE and Optica
Ph.D. Harvard University
B.S. Tsinghua University

Email: cwang257@cityu.edu.hk
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Prof. Wang received his B.S. degree in Microelectronics from Tsinghua University in 2012, and his S.M. (2015) and Ph.D. (2017) degrees, both in Electrical Engineering from Harvard University, supervised by Prof. Marko Lončar. After conducting research as a postdoctoral fellow at Harvard, he joined City University of Hong Kong as an Assistant Professor in 2018, and was promoted to Associate Professor in 2023. Prof. Wang's research focuses on the design and nanofabrication technology of integrated photonic devices and circuits. His current research effort focuses on realizing integrated lithium niobate photonic circuits for applications in optical communications, millimeter-wave/terahertz technologies, nonlinear optics, and quantum photonics. Since joining CityU, Prof. Wang has received a number of awards in both research and teaching, including the NSFC Excellent Young Scientist Fund (HK & Macau) (2019), the Croucher Innovation Award (2020), The President's Award, CityU (2020), 35 Innovators Under 35 (China), MIT Technology Review (2021), as well as EE Outstanding Teaching Award (2019/20&2020/21) and College Outstanding Teaching Award (2020/21). He is currently Senior Members of IEEE and Optica.

Research Assistant Professor

FENG Hanke (冯寒珂)
Research Assistant Professor. Department of Electrical Engineering, City University of Hong Kong
Ph.D. Electronical Engineering, City University of Hong Kong
M.S. Electrical Engineering, XJTU
B.S. Electrical Engineering, XAUT

Email: hankefeng2@cityu.edu.hk

Dr. Feng received his B.S. and M.S. degree from Xi'an University of Technology and Xi'an Jiaotong University in 2016 and 2019, respectively. He joined CHENG lab in 2020 as a PhD student and obtained his doctoral degree in 2024. After completing one year of postdoctoral research in the group, he subsequently joined CityU as a Research Assistant Professor. His research interests include the design and nanofabrication technology of integrated lithium niobate and its applications in the microwave photonics and optical communications. He has received a series of awards in research and exhibitions, including the Outstanding Doctoral Research Award (2025), China's Top Ten Advances in Optics (2024), Rising Star in Microwave Photonics (2024), Silver Medal in Geneva International Exhibition of Invention (2024), as well as Gold medal in Asia Exhibition of Innovations and Inventions (2024).

Postdoctoral and Visiting Fellows

ZENG Yuansong (曾元松)
Ph.D. Electronic Engineering, UESTC
M.S. Electronic Engineering, UESTC
B.S. Electronic Engineering, UESTC

Email: yuanzeng@cityu.edu.hk

Dr. Zeng received his B.S., M.S. and Ph.D degrees all from University of Electronic Science and Technology of China (UESTC). He served as a research assistant at State Key Laboratory of Terahertz and Millimeter Waves, CityU in 2018. He joined Prof. Wang's group as a Postdoc in 2023. His research interests include integrated nano-photonic devices and microwave photonics.
XIE Xiangzhi (谢祥芝)
Ph.D. Electronic Science and Technology, BUPT
B.S. Opto-electronic Information Science and Engineering, HUST

Email: XZ.Xie@cityu.edu.hk

Dr. Xie received his B.S. and Ph.D degrees from HUST and BUPT, in 2018 and 2023 respectively. From September 2022 to September 2023, he worked as a research assistant at Universidad Politécnica de Valencia, with the support of the China Scholarship Council, under the supervision of Prof. José Capmany. He joined the CHENG lab as a Postdoc in January 2024. His research interests include integrated microwave photonics, optical signal processing and measurements, and optical frequency comb.
TAO Yuansheng (陶源盛)
Ph.D. Communication and Information Engineering, PKU
B.S. Optoelectronic Science and Engineering, UESTC

Email: yuanstao@cityu.edu.hk

Dr. Tao received his B.S. and Ph.D degrees from UESTC and PKU, in 2017 and 2022 respectively. From Aug. 2022 to Apr. 2024, he worked as a senior engineer at Huawei Technologies Co Ltd. He joined the CHENG lab as a Postdoc in Apr. 2024. His research interests include integrated microwave photonics, and thin-film lithium niobate photonics.
WANG Hao (王豪)
Ph.D. Optical Engineering, Tsinghua University
B.S. Optical Engineering, Beijing Institute of Technology

Email: hao.wang37@cityu.edu.hk

Dr. Wang received his B.S. and Ph.D. degrees from Beijing Institute of Technology and Tsinghua University, in 2020 and 2025 respectively. From 2022 to 2023, he worked as a visiting researcher in Complex media optics lab at École Normale Supérieure under the supervision of Prof. Sylvain Gigan. He joined CHENG lab as a Postdoc in August 2025.

PhD Students

LI Xiaoting (李晓婷)
M.S. Physics, NKU
B.S. Physics, HLJU

Email: xiaotinli5-c@my.cityu.edu.hk

Xiaoting received her B.S. degree and M. S. degree from Heilongjiang University and Nankai University in 2016 and 2019, respectively. She joined CHENG lab in 2019 as a Ph. D. student at CityU. Xiaoting is a recipient of HKPFS.
SHANG Chengfei (商成斐)
B.S. Optoelectronic Science and Engineering, UESTC

Email: chenshang2-c@my.cityu.edu.hk

Chengfei received his B.S. degree from University of Electronic Science and Technology of China. He joined CHENG lab in 2020 as a Ph.D. student at cityU.
WANG Zhenzheng (汪振政)
M.S. Optical engineering, HUST
B.S. Optical information science and technology, AHU

Email: zwang357-c@my.cityu.edu.hk

Zhenzheng received his B.S. and M.S. degree from Anhui University and Huazhong University of Science and Technology in 2014 and 2017, respectively. He started working at Huawei in 2017 as an optical technology engineer. He joined CHENG lab in 2021 as a Ph.D. student at CityU.
CHEN Yikun (陈逸堃)
M.S. Optical Engineering, HUST
B.S. Measurement and Control of Technology and Instrumentations, WHU

Email: yikunchen2-c@my.cityu.edu.hk

Yikun received his B.S. and M.S. degree from Wuhan University and Huazhong University of Science and Technology in 2018 and 2021, respectively. He joined CHENG lab in 2021 as a Ph.D. candidate at CityU.
LI Haochuan (李浩川)
M.S. Material Science and Engineering, CUHKSZ
B.S. Physics, HUST

Email: haochuali2-c@my.cityu.edu.hk

Haochuan received his B.S. and M.S. degree from Huazhong University of Science and Technology and The Chinese University of Hongkong, Shenzhen in 2018 and 2021, respectively. He joined CHENG lab in 2022 as a Ph.D. candidate at CityU.
ZHU Hongbo (祝宏博)
B.S. Optoelectronics Information Science and Engineering, NKU

Email: Hongbo.ZHU@my.cityu.edu.hk

Hongbo received his B.S. degree from Nankai University. He joined CHENG lab in 2023 as a Ph.D. student at cityU.
WU Yifan (吴怡凡)
M.S. Electronic Science and Technology, NUAA
B.S. Electronic Information Science and Technology, NUAA

Email: yifwu23-c@my.cityu.edu.hk

Yifan received her B.S. and M.S. degree from Nanjing University of Aeronautics and Astronautics in 2021 and 2024. She joined CHENG lab in 2024 as a Ph.D. student at CityU.
WANG Zixi (王梓希)
M.S. Electromagnetic Field and Microwave Technology, Southeast University
B.S. Electronic Information Engineering, Xidian University

Email: zixi.wang@my.cityu.edu.hk

Zixi received his B.S. and M.S. degrees from Xidian University and Southeast University, in 2021 and 2023, respectively. He joined CHENG lab in 2024 as a Ph.D. student. His research interests include Microwave/THz Photonics and Nanophotonics.
LUO Zeyu (罗泽宇)
M.S. Quantum Information Physics, USTC
B.S. Optics and Optical Engineering, USTC

Email: zeyuluo3-c@my.cityu.edu.hk

Zeyu received his B.S. degree and M.S. degree from University of Science and Technology of China in 2021 and 2024. He joined CHENG lab in 2024 as a Ph.D. student at cityU.
ZHENG Bowen (郑博文)
B.Eng. Microelectronic Science and Engineering, Sun Yat-sen University

Email: bzheng29-c@my.cityu.edu.hk

Bowen received his B.Eng. degree from Sun Yat-sen University in 2025. He joined CHENG lab in 2025 as a Ph.D. student at CityU.
CHEN Geng (陈耕)
M.Eng. Optical Engineering, HUST
B.Eng. Optoelectronic Information Science and Engineering, HUST

Email: chen.geng@my.cityu.edu.hk

Geng received his B.Eng. and M.Eng. degrees from Huazhong University of Science and Technology (HUST) in 2022 and 2025. He joined CHENG Lab in 2025 as a Ph.D. student.
WANG Qian (王乾)
B.S. Physics, USTC

Email: qwang766-c@my.cityu.edu.hk

WANG Qian received his B.S. degree from University of Science and Technology of China in 2025. He joined CHENG lab in 2025 as a Ph.D. student at CityU.

Visiting PhD Students

XU Zengyi (徐增熠)
B.S. Electronics and electrical engineering, UESTC
B.Eng. Electronics and electrical engineering with information engineering, University of Glasgow

Email: zengyixu2-c@my.cityu.edu.hk

Zengyi holds a joint B.S. in Electrical and Electronic Engineering from the University of Electronic Science and Technology of China and the University of Glasgow (Hons, 1st), and is currently a Ph.D. candidate at Fudan University specializing in visible-light-communication devices; his research focuses on high-speed VLC systems, GaN-based transmitters/receivers, and modulation, coding, and MIMO techniques for VLC, with six journal papers on Photonics Research, IEEE JLT, Opto-Electronic Science, etc., and five conference papers. He joined CHENG lab in 2025 as a visiting student at CityU.

Undergraduate Students

REN Yujie (任宇杰)
Undergraduate. Electrical Engineering, CityU

Email: yujieren4-c@my.cityu.edu.hk

REN Yujie began her undergraduate studies at City University of Hong Kong in 2022. She joinedCHENG lab in 2024 as a undergraduate student at CityU.

Alumni - PhDs

Name Graduation Current position
ZHANG Yiwen (张依文) 2024 Scientist, A*STAR
YANG Jingwei (杨婧威) 2024
FENG Hanke (冯寒珂) 2024 Postdoc, CityU
ZHANG Ke (张珂) 2023 CEO, Rhinopix Technology Ltd.
CHEN Zhaoxi (陈朝夕) 2022 CTO, Rhinopix Technology Ltd.

Alumni - Research Staff and Undergrads

Name Position Current position
GE Tong (葛通) Sep 2022 - Aug 2025, Research Assistant PhD student, Harvard University
ABDELBAKY Moustafa Sep 2023 - Aug 2024, Research Assistant PhD student, HKUST
SHEN Bitao (沈碧涛) Sep 2023 - Jan 2024, Visiting PhD student PhD student, Peking University
ZHU Sha (朱厦) Mar 2022 - Sep 2023, Postdoc Professor, Nankai University
SUN Wenzhao (孙文钊) Oct 2020 - Feb 2022, Postdoc Assistant Professor, City University of Hong Kong (Dongguan)
PENG Zhongdi (彭钟迪) May 2020 - Dec 2020, Research assistant PhD student, Georgia Institute of Technology
MA Fei (马飞) Mar 2019 - Mar 2020, Postdoctoral Fellow Associate Professor, Sun Yat-sen University