AP Seminar - Microcavity-enhanced Optical Sensing
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Date
23 Jun 2023
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Organiser
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Time
16:30 - 17:30
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Venue
CD620, 6/F, Wing CD, PolyU Map
Speaker
Dr. Yun-Feng Xiao
Summary
Confinement and manipulation of photons using microcavities have triggered intense research interest in both fundamental and applied photonics for more than one decade. Prominent examples are ultrahigh-Q whispering gallery microcavities which confine photons by means of continuous total internal reflection along a curved and smooth surface. The long photon lifetime and strong field confinement characteristics make them promising candidates for enhancing light-matter interactions on a chip. In this talk, I will focus on microcavity sensing mechanisms and their practical applications in single nanoparticle detection, single-cell tracking and environmental monitoring.
Keynote Speaker
Dr. Yun-Feng Xiao received the B.S. and Ph.D. degrees in physics from University of Science and Technology of China in 2002 and 2007, respectively. After a postdoctoral research at Washington University in St. Louis, he joined the faculty of Peking University in 2009, and was promoted a tenured associated professor in 2015 and a full professor in 2019. His research interests lie in the fields of whispering-gallery microcavity optics and photonics. He has authored or co-authored more than 100 refereed journal papers in Science, Nature Photonics, PNAS, PRL, Advanced Materials et al. He has delivered over 100 plenary/keynote/invited talks/seminars in international/national conferences/universities. He is the Fellow of OSA, SPIE and COS, and has served as the committee member for more than 30 international conferences.
