Dissertation Defense: Development of Photoacoustic Microscopy for Endoscopic Imaging and Non-contact Imaging

Date: 2023/05/23 - 2023/05/23

Dissertation Title: Development of Photoacoustic Microscopy for Endoscopic Imaging and Non-contact Imaging

Speaker: Siqi Liang, Ph.D. candidate at UM-SJTU Joint Institute

Time: May 23rd from 2:15 p.m., 2023 (Beijing Time)

Location: Room 414B, Longbin Building


Photoacoustic microscopy, with the advantages of high resolution, high contrast, no radiation and no labelling, and the ability to provide morphological and functional information, shows great potential for clinical applications and has been applied to imaging and histological evaluation of organs such as the skin, oral cavity and breast. The research motivation of this dissertation is to develop the photoacoustic microscopy for both endoscopic and non-contact imaging. One is to enhance the depth of focus of endoscopic imaging by opto-mechanical zooming and convolutional neural networks; the other is to develop low-cost non-contact imaging and applications in cerebrovascular imaging. An endoscopic photoacoustic remote sensing system is then proposed with both advantages of endoscopic imaging and non-contact imaging. This development has the potential to be applied to pulmonary bronchial imaging and to aid in the diagnosis and treatment of bronchial-related diseases.


Siqi Liang received the B.S. degree in Optoelectronic Information of Science and Engineering from Northwestern Polytechnical University. In 2018, he joined the University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China, to continue further studies. His research interests include development of photoacoustic microscopy and image processing in photoacoustic imaging.