来源:精密光谱科学与技术国家重点实验室

【校级报告】超高品质因子微腔光学

来源:精密光谱科学与技术国家重点实验室发布时间:2021-09-30浏览次数:168

报告人:肖云峰 教授

主持人:张诗按 研究员

   2021109号下午2

   :腾讯会议 ID967 946 155

报告人简介:

肖云峰,北京大学博雅特聘教授。于2002年和2007年在中国科学技术大学物理系分别获得物理学士和博士学位;随后赴美国圣路易斯华盛顿大学从事博士后研究;2009年回到北京大学物理学院工作,历任百人计划研究员、长聘副教授、教授。主要从事超高品质因子光学微腔的实验和理论研究。近年来,以主要作者在SciencePNASNature PhotonicsNature CommunicationsPhysical Review Letters等国际重要杂志发表研究论文200余篇,他引6000余次,h因子51。研究成果两次入选中国高校十大科技进展20142017),1次入选由美国光学学会评选的年度国际光学重大进展2018),5次入选中国光学十大进展20102016201720192020)。获饶毓泰基础光学奖(2013)、王大珩光学奖(2017)、教育部青年科学奖(2018)、饶毓泰物理奖(2018-2019)、陈嘉庚青年科学奖(2020)和中国青年科技奖(2020);被选为美国光学学会会士(2019)和中国光学学会会士(2021)。

报告内容简介:

Confinement and manipulation of photons using microcavities have triggered intense research interest in both fundamental and applied photonics for more than two decades. 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, strong field confinement, and in-plane emission characteristics make them promising candidates for enhancing light-matter interactions on a chip. In the first part of this talk, I will introduce some representative photonics applications of ultrahigh-Q microcavities. In the second part, I will focus on (1) chaos-assisted momentum transformation in an asymmetrical microcavity, (2) spontaneous symmetry breaking of optical fields in a single ultrahigh-Q microcavity, and (3) second-order nonlinear optics induced by symmetry breaking at the surface of a silica microcavity under a sub-milliwatt continuous-wave pump.