• Mechanobiological Spectroscopy and Photonics Laboratory

    Principal Investigator: Shui-Jing Tang 

    We are developing novel photonic probes, based on micro-nanoscale high-quality-factor cavities and lasers, for mechanobiological sensing, spectroscopy, and imaging

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  • Research

    Optical sensing, spectroscopy, and imaging with microscale optical sensors

    • Microscale photonic sensors (high-quality optical microcavities, microlasers)
    • Bio-integrable and implantable microscale photonic devices

    We focus on novel photonic technologies through microscale optical structures, such as ultrahigh-Q microcavities and nanolasers, to achieve breakthroughs in sensing sensitivity, imaging resolution, and spectroscopic precision. It also pioneers biocompatible and implantable photonic devices (e.g., intracellular force sensors) for minimally invasive biomedical applications.

    Photoacoustic spectroscopy, Optomechanics and Biomechanics

    • Photoacoustic spectroscopy and optomechanics
    • Fundamental studies on full-spectrum viscoelastic biomechanics

    We leverage photoacoustic spectroscopy and optomechanics to facilitate the coupling of multiple physical fields, including light, sound, and force. It investigates the viscoelastic properties of biological materials, thereby enabling comprehensive biomechanical spectroscopy across cellular and subcellular scales.

    Mechanobiological Spectroscopy, Microscopy & Regulation

    • Biomechanical and Mechanobiological Microscopy
    • Multimodal regulation (force, sound, light) of cell activities and living systems

    Centered on imaging and manipulating biomechanical dynamics in living systems, we are developing multimodal techniques (e.g., biomechanical microscopy) for high-resolution mapping of tissue viscoelasticity. It further explores multimodal regulation strategies to probe and control mechanobiological processes (e.g., cell mechanotransduction), bridging innovations in imaging technology, mechanobiology, and precision therapeutics.

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  • Team

    We are looking for new Postdocs, graduate students and technicians to join the team (see openings) !

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    Shui-Jing Tang

    Assistant Professor, Principal Investigator
    Peking University Boya Young Fellow
    National Biomedical Imaging Center (NBIC), College of Future Technology, Peking University

    Email: sjtang@pku.edu.cn
    Room: Room 304, Buiding 2, NBIC

    Biography

    Dr. Shui-Jing Tang is an assistant professor at the National Biomedical Imaging Center (NBIC) of Peking University. She obtained her PhD and completed her postdoctoral training at Peking University. Her research focuses on mechanobiological spectroscopy and microscopy. Her group aims to develop micro-nanoscale optical probes, including optical-microcavity-based ultrasound sensors and intracellular microlasers, for multimodal biomedical imaging, with representative publications in journals such as Nature Photonics, PNAS, PRL, and Nature Communications. Her accomplishments have been recognized and awarded by the "Year in Optics" (Optica, 2023) and the "Top Ten Breakthroughs in Optics in China" (2022, 2023). She has been selected for the Future Female Scientist Program (2025).

    Education

    2015-2020 Ph.D. School of Physics, Peking University

    2018-2019 JointPh.D. Massachusetts General Hospital, Harvard Medical School

    2011-2015 B.S., School of Science, Wuhan University of Technology

    Experience

    2024- Assistant Professor, College of Future Technology, Peking University

    2022-2024 Research Associate Professor, School of Physics, Peking University

    2020-2022 Postdoc, School of Physics, Peking University

    Group members

    Graduate students
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    Mo-Xuan Li

    PhD student, Peking University (2025- )

    Undergraduate, Beijing Normal University (2021-2025)

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    Hong-Hai Li

    PhD student, Peking University (2025- )

    Undergraduate student, Huazhong University of Science and Technology (2021-2025)

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    Ying-Da Huang

    PhD student (Joint), Peking University (2022- )

    B.Eng, Northeastern University (2018-2022)

    E-mail: huang_yingda@stu.pku.edu.cn

    Undergraduate students
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    Hao-Tian Xing

    Undergraduate, Peking University (2022- )

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    Wen-Kai Gao

    Undergraduate, Peking University (2023- )

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    Yi-Fan Cai

    Undergraduate, Peking University (2023- )

    Research assistants/technician
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    Jun Cai

    Research assistant, Peking University (2025-)

    Master, Imperial College London (2023-2024)

    B.Eng, The University of Manchester (2020-2023)

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    Shao-Xun Wang

    Technician

    wsx@pku.edu.cn

  • Publications

    Selected publications

    1. Shui-Jing Tang, Mingjie Zhang, Jialve Sun, Jia-Wei Meng, Xiao Xiong, Qihuang Gong, Dayong Jin, Qi-Fan Yang, and Yun-Feng Xiao*, “Single-particle photoacoustic vibrational spectroscopy using optical microresonators”, Nature Photonics 17, 951-956 (2023). PDF. Front cover story. Highlighted in News & Views of Nature Photonics.
    2. Jia-Wei Meng, Shui-Jing Tang*(corresponding author), Jialve Sun, Ke Shen, Changhui Li, Qihuang Gong, and Yun-Feng Xiao*,“Dissipative Acousto-optic Interactions in Optical Microcavities”, Physical Review Letter 129, 073901 (2022). PDF
    3. Xiao-Chong Yu#, Shui-Jing Tang#, Wenjing Liu, Yinglun Xu, Qihuang Gong, You-Ling Chen*, and Yun-Feng Xiao*, “Single-molecule optofluidic microsensor with interface whispering gallery modes”, PNAS 119, e2108678119 (2022). PDF. Highlighed in Science Bulletin
    4. Ming Jin#, Shui-Jing Tang#, Jin-Hui Chen, Xiao-Chong Yu, Haowen Shu, Yuansheng Tao, Antony K. Chen, Qihuang Gong, Xingjun Wang*, and Yun-Feng Xiao*, “1/f-noise-free optical sensing with an integrated heterodyne interferometer”, Nature Communications 12, 1973 (2021). PDF
    5. Shui-Jing Tang#, Paul H. Dannenberg#, Andreas C. Liapis#, Nicola Martino, Yue Zhuo, Yun-Feng Xiao*, and Seok-Hyun Yun*, “Laser particles with omnidirectional emission for cell tracking”, Light: Science & Applications 10, 23 (2021). PDF. Front cover story. Highlighted in News & Views of Light: Science & Applications, Highlighted in Phys. org
    6. Shui-Jing Tang#, Shuai Liu#, Xiao-Chong Yu, Qinghai Song*, Qihuang Gong and Yun-Feng Xiao*, “On-chip spiral waveguides for ultrasensitive and rapid detection of nanoscale objects”, Advanced Materials 30, 1800262 (2018). PDF
    7. Shui-Jing Tang#, Zhihe Liu#, Yanjun Qian, Kebin Shi, Yujie Sun, Changfeng Wu, Qihuang Gong, Yun-Feng Xiao*, “A tunable optofluidic microlaser in a photostable conjugated polymer”, Advanced Materials 30, 1804556 (2018). PDF

    2023

    1. Shui-Jing Tang, Mingjie Zhang, Jialve Sun, Jia-Wei Meng, Xiao Xiong, Qihuang Gong, Dayong Jin, Qi-Fan Yang, and Yun-Feng Xiao*, “Single-particle photoacoustic vibrational spectroscopy using optical microresonators”, Nature Photonics 17, 951-956 (2023).
    2. Chaoyang Gong#, Xi Yang#, Shui-Jing Tang#, Qian-Qian Zhang#, Yanqiong Wang, Yi-Ling Liu, Yu-Cheng Chen, Gang-Ding Peng, Xudong Fan, Yun-Feng Xiao*, Yun-Jiang Rao* and Yuan Gong*, "Submonolayer biolasers for ultrasensitive biomarker detection," Light Sci. Appl. 12, 292 (2023).
    3. Xi Yang, Shui-Jing Tang, Jia-Wei Meng, Pei-Ji Zhang, You-Ling Chen*, and Yun-Feng Xiao*, "Phase-Transition Microcavity Laser," Nano Letter 23, 3048-3053 (2023).
    4. Jialve Sun, Shui-Jing Tang, Jia-Wei Meng, Changhui Li. “Whispering-gallery optical microprobe for photoacoustic imaging”, Photonics Research 11(11), A65-A71 (2023).

    2022

    1. Jia-Wei Meng, Shui-Jing Tang*(corresponding author), Jialve Sun, Ke Shen, Changhui Li, Qihuang Gong, and Yun-Feng Xiao*,“Dissipative Acousto-optic Interactions in Optical Microcavities”, Physical Review Letter 129, 073901 (2022).
    2. Xiao-Chong Yu#, Shui-Jing Tang#, Wenjing Liu, Yinglun Xu, Qihuang Gong, You-Ling Chen*, and Yun-Feng Xiao*, “Single-molecule optofluidic microsensor with interface whispering gallery modes”, PNAS 119, e2108678119 (2022).
    3. Jialve Sun, Jia-Wei Meng, Shui-Jing Tang*(corresponding author) and Changhui Li*, “An encapsulated optical microsphere sensor for ultrasound detection and photoacoustic imaging”, SCIENCE CHINA Physics, Mechanics & Astronomy 65, 224211 (2022).
    4. Jia-Wei Meng, Pei-ji Zhang, Shui-Jing Tang*(corresponding author), Yun-Feng Xiao*, “Ultrasound detection using a thermal-assisted microcavity Raman laser”, AAPPS Bulletin 32, 38 (2022).
    5. Wenjing Liu, Shui-Jing Tang, Yun-Feng Xiao*. “Nonlinear Optical Microcavities Towards Single-Molecule Sensing”. Single Molecule Sensing Beyond Fluorescence, Nanostructure Science and Technology. Springer, Cham. 97-123(2022). (Book Chapter)

    2021

    1. Ming Jin#, Shui-Jing Tang#, Jin-Hui Chen, Xiao-Chong Yu, Haowen Shu, Yuansheng Tao, Antony K. Chen, Qihuang Gong, Xingjun Wang*, and Yun-Feng Xiao*, “1/f-noise-free optical sensing with an integrated heterodyne interferometer”, Nature Communications 12, 1973 (2021).
    2. Shui-Jing Tang#, Paul H. Dannenberg#, Andreas C. Liapis#, Nicola Martino, Yue Zhuo, Yun-Feng Xiao*, and Seok-Hyun Yun*, “Laser particles with omnidirectional emission for cell tracking”, Light: Science & Applications 10, 23 (2021).
    3. Wenjing Liu#*, You-Ling Chen#, Shui-Jing Tang, Frank Vollmer, Yun-Feng Xiao*. “Nonlinear sensing with whispering-gallery mode microcavities: from label-free detection to spectral fingerprinting”, Nano Letters 21, 1566-1575 (2021). (Front cover paper)

    Prior to 2020

    1. Qi-Tao Cao, Shui-Jing Tang, Hao-Jing Chen, Yun-Feng Xiao*, “Research advances of ultrahigh-Q on-chip microcavity photonics”, Chinese Science Bulletin 65(27), 3028(2020).
    2. Shui-Jing Tang, Bei-Bei Li and Yun-Feng Xiao*, "Optical sensing with whispering-gallery microcavities", Physics (China) 48(3), 137-147 (2019).
    3. Siyao Zhang#, Shui-Jing Tang#, Shengfei Feng,* Yun-Feng Xiao,* Wanyin Cui, Xinke Wang, Wenfeng Sun, Jiasheng Ye, Peng Han, Xinping Zhang, Yan Zhang, “High-Q polymer microcavities integrated on multicore fiber facet for vapor sensing”, Advanced Optical Materials 7, 1900602 (2019).
    4. Chunhua An, Zhihao Xu, Wanfu Shen, Rongjie Zhang, Zhaoyang Sun, Zhaoyang Sun, Zhaoyang Sun, Shuijing Tang, Yun-Feng Xiao, Daihua Zhang, Dong Sun, Xiaodong Hu, Chunguang Hu, Lei Yang*, and Jing Liu*, “The Opposite Anisotropic Piezoresistive Effect of ReS2”, ACS Nano 13, 3310 (2019).
    5. Jin-hui Chen#, Xiaoqin Shen#, Shui-Jing Tang, Qi-Tao Cao, Qihuang Gong, and Yun-Feng Xiao*, "Microcavity nonlinear optics with an organically functionalized surface", Physical Review Letter 123, 173902 (2019). (Front cover paper, Editors' suggestion)
    6. Shui-Jing Tang#, Shuai Liu#, Xiao-Chong Yu, Qinghai Song*, Qihuang Gong and Yun-Feng Xiao*, “On-chip spiral waveguides for ultrasensitive and rapid detection of nanoscale objects”, Advanced Materials 30, 1800262 (2018).
    7. Shui-Jing Tang#, Zhihe Liu#, Yanjun Qian, Kebin Shi, Yujie Sun, Changfeng Wu, Qihuang Gong, Yun-Feng Xiao*, “A tunable optofluidic microlaser in a photostable conjugated polymer”, Advanced Materials 30, 1804556 (2018).
    8. Yinglun Xu#, Shui-Jing Tang#, Xiao-Chong Yu, Daquan Yang, Qi-Huang Gong, and Yun-Feng Xiao*, “Microcavity-enhanced scattering of an arbitrary-shaped nanoparticle: theory and application”, Physical Review A 97(6), 063828 (2018).
    9. Xiao-Chong Yu, Yanyan Zhi, Shui-Jing Tang, Bei-Bei Li, Qihuang Gong, Cheng-Wei Qiu and Yun-Feng Xiao*, “Optically sizing single atmospheric particulates with a 10-nm resolution using a strong evanescent field”, Light: Science & Applications 7, 18003 (2018).
    10. Shui-Jing Tang, Fei Gao, Da Xu, Yan Li, Qihuang Gong, and Yun-Feng Xiao*, “Rayleigh scattering in an emitter-nanofiber-coupling system”, Physical Review A 95, 043801 (2017).
    11. Shuijing Tang, Bo Zhang, Zhi Li, Jixiang Dai, Gaopeng Wang, and Minghong Yang*, “Self-compensated microstructure fiber optic sensor to detect high hydrogen concentration”, Optics Express 23, 22836 (2015).
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  • Open positions

    We are currently seeking excellent graduate students and postdoctoral researchers, as well as technicians, to join our team at Tang Lab.

    To apply, please submit a comprehensive CV and a cover letter to Dr. Shui-Jing Tang (sjtang@pku.edu.cn).

    Our group are working in a highly multidisciplinary field at the crossroads of physics and biology. The work will take place in completely new state-of-the-art laboratories and a very young and motivated team, targeting the highest impact publications. Current projects include optical sensors and probes, photoacoustic spectroscopy and imaging, cell mechanics, etc. Applicants are expected to have experimental experience in fields of physics, engineering or biology.