时 间： 2016 年10 月31日 10: 00 - 12 : 00
地 点： 南五楼 613 学术报告厅
报告人： Prof. MishaSumetsky, 英国阿斯顿大学光电子技术研究所
邀请人： 闫志君 副教授
报告摘要：
首先，我将回顾微纳光纤结构的微尺度效应。与等离子体学不同，微纳光纤结构不包含纳米尺寸的金属颗粒、线和薄膜，其半径在纳米量级扰动也能显著改变其性能。我考虑这可能是回音壁模式沿光纤表面的缓慢传输。这些模式的轴向传输是如此之慢，以至于微纳光纤半径上非常小的尺度变化也能够被影响。这种现象能被应用在表面纳米轴向光子学（SNAP）当中，这将是一个用来实现亚埃精度微型超低损耗光子集成电路制造的新平台。同时，我还回顾了SNAP技术的理论和应用。
Nanoscaleeffects in photonic structures fabricated from pure optical fibresare reviewed. In contrast to those in plasmonics, these structures do not contain metal particles, wires, or films with nanoscaledimensions. Nevertheless, a nanoscaleperturbation of the fibreradius can significantly alter their performance. I consider slow propagation of whispering gallery modes along the fibresurface. The axial propagation of these modes is so slow that they can be governed by extremely small nanoscalechanges of the optical fibreradius. The described phenomenon is exploited in SNAP (Surface NanoscaleAxial Photonics), a new platform for fabrication of miniature super-low-loss photonic integrated circuits with unprecedented sub-angstrom precision. The SNAP theory and applications are reviewed.
报告人介绍：
MishaSumetsky教授毕业于俄罗斯圣彼得堡国立大学，并先后于该校获得博士及理学博士学位。随后在俄罗斯圣彼得堡通信大学物理学院任职，直到1995年加入贝尔实验室（美国），并于2001年贝尔实验室光纤研究部门转换为OFS实验室后，继续从事相关研究。2013年，Sumetsky博士出任阿斯顿大学光子技术研究所教授。Sumetsky教授目前是美国光学学会会士以及英国皇家学会沃夫森优异奖（Royal Society WolfsonMerit Award）获得者，在光学以及量子力学方向发表200多篇论文及25篇专利，2012年在NaturePhotonics发表微纳光纤综述文章，目前主要从事光学微腔，微纳光纤，以及纳米光子学的研究。
Michael (Misha) Sumetskygraduated from the Saint-Petersburg State University, Russia, and has Ph.D. and D.Sc. degrees from the same University. He worked at the Physics Department of Saint-Petersburg University of Telecommunications (Russia) till 1995 when he joined Bell Laboratories (USA). In 2001-2013, Dr. Sumetskycontinued his research at OFS Labs after transition of the Optical Fiber Research Department of Bell Labs into the OFS Labs of the Furukawa Electric Company. In 2013 he joined the Institute of Photonic Technologies at Aston University, UK, where he is currently Professor of Photonics. Sumetskyis a Fellow of the OSA, Royal Society WolfsonResearch Merit Award Holder, and has more than 200 publications and more than 25 patents in optics and quantum mechanics. His present research interests are in optics of microresonators, micro/nanofibers, and nanophotonics.
