1. 学术报告 光学色散傅里叶 变换 在微波光子系 统 中的 应 用 Dispersive Fourier Transformation for Versatile Microwave Photonics Applications Abstract: Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform using chromatic dispersion. Owing to its capability of real-time pulse- by-pulse spectroscopic measurement and manipulation, DFT has become a promising technique for ultrafast signal generation and processing, and high-throughput real-time measurement in optical communications, optical sensing, spectroscopy and imaging, where the speed of traditional optical instruments falls short. In this talk, emerging interdisciplinary field of microwave photonics is first briefly introduced. The principle and implementation methods of DFT are then introduced and the recent development in employing DFT technique for widespread microwave photonics applications are presented, with emphasis on real-time spectroscopy, microwave arbitrary waveform generation, microwave spectrum sensing, and ultrafast optical imaging. Possible future research directions for DFT-based microwave photonics techniques will be discussed as well. Biography: Dr Chao Wang joined the School of Engineering and Digital Arts, University of Kent, UK, as a Lecturer (Assistant Professor) in 2013. From 2011 to 2012, he was a NSERC (Natural Sciences and Engineering Research Council of Canada) Postdoctoral Fellow at the University of California, Los Angeles (UCLA), USA. He received the B.Eng degree in Optoelectrical Engineering from Tianjin University, China, in 2002, the M.Sc degree in Optics from Nankai University, China, in 2005, and the Ph.D degree in Electrical and Computer Engineering from the University of Ottawa, Canada, in 2011.Dr Wang’s research interests lie in interdisciplinary areas that study the interaction between photonics and other traditional or state-of-the-art technologies in different fields, such as microwave photonics, optical communications, optical sensing and biophotonics. His research activities have been well funded by European Marie-Curie Actions, the Royal Society of UK, University of Kent, and Natural Sciences and Engineering Research Council (NSERC) of Canada. He has authored over 70 peer-reviewed journal publications and conference papers. He has given several invited talks in major photonics conferences including ECOC, MWP, and IPC. He received the Best Student Paper Awards from APMP 2009 and MWP 2010. He was the recipient of many awards and scholarships including SPIE Scholarship in Optical Science and Engineering (2008), Vanier Canada Graduate Scholarship (2009), Chinese Government Award for Outstanding Self-Financed Students Abroad (2009), IEEE Photonics Society Graduate Student Fellowship (2009), IEEE Microwave Theory and Techniques Society Graduate Fellowship (2010), NSERC Postdoctoral ellowship (2011), and EU Marie Curie Career Integration Award (2014). He is serving as an active reviewer of more than 20 leading photonics journals of OSA, IEEE, IET, Elsevier and Wiley. He also served as the Co-organizer and Chair of Mini-Symposium on Microwave Photonics in PIERS 2014. He is serving as the Guest Editor of Special Session on Microwave Photonics in SPIE Optical Engineering. Institute of modern optics, Nankai University Talker: Dr. Chao Wang Ph.D., MIEEE, MOSA, MSPIE Lecturer in Electronic Systems School of Engineering and Digital Arts University of Kent Time: 11:00 am, 20 th July, 2015 Address: 伯苓楼一楼玻璃房