量子科学与技术中心学术报告

时间： 2014 年4 月3 日 下午3:30-5:00

地点：理电学院学术报告厅1206

报告人：肖云峰北京大学“百人计划“研究员

题目: Ultrahigh-Q whispering gallery microcavities: interface for enhancing light-matter interaction

Abstract: The long photon lifetime, strong field confinement, and in-plane emission characteristics make whispering gallery microcavities promising candidates for enhancing light-matter interactions on a chip, ranging from fundamental studies to applied photonics. This talk focuses on optomechanical interaction which enables not only high-precision measurement of mass, force and displacement, but also precise manipulation of the mechanical motion, for example, cooling and amplification of the mechanical motion. In this talk, I will introduce the dynamical control of the cavity dissipation within the strong optomechanical coupling regime, which is able to significantly accelerate the cooling process while strongly suppressing the heating noise. The dynamic control is also capable of overcoming quantum backaction and reducing the cooling limit by several orders of magnitude.

References: Y.-C. Liuet al., Phys. Rev. Lett. 110(15), 153606 (2013).

报告人简介:肖云峰，1981年1月生，北京大学“百人计划“研究员。分别于2002年和2007年在中国科学技术大学获得学士 和 博士学位。近十年来一直从事高品质光子微腔的实验和理论研究工作，与合作者在国际期刊Phys. Rev. Lett., Nature Photon., Adv. Mat., Phys. Rev. A, Appl. Phys. Lett., Opt. Lett.等共发表学术论文80余篇，共被引用1200余次。2012获首批"国家优秀青年科学基金"。2013年8月起担任Photonics Research杂志编委；曾经担任第六届国际纳米光子学会议(6th International Conference on Nanophotonics)地方组委会主席，组织了第三届光学微腔及其应用国际研讨会(3rd International Workshop on Microcavities and Their Applications)；被邀请为Phys. Rev. Lett., Phys. Rev. A/B, Appl. Phys. Lett., Opt. Lett., Opt. Express, Scientific Report (NPG), Appl. Opt., Chin. Phys. Lett., Chin. Opt. Lett.等国际学术刊物审稿人。

联系方式：yfxiao@pku.edu.cn

量子科学与技术中心

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