报告题目

Formation of directional outputs from mcrodisk via tailoring the cavity boundary

报 告 人

Prof. Qinghai Song， Harbin Institute of Technology

报告地点

物理楼中楼212教室

报告时间

2011年10月26日下午3:00-4:30

联 系 人

肖云峰

报告摘要

Microdisks have attracted considerable research attention in past decades. Due to their unique properties such as ultrahigh Q factors and small mode volume, microdisks have been widely studied as potential devices for many applications e.g. ultralow threshold laser, single photon emitter, and solid-state cavity quantum electrodynamics (QED). All of the real applications relate to one important parameter – light collection efficiency. In additional to the typical fiber/waveguide coupling method which requires highly precise position controlling, we have focused on an alternative robust and cost-effective approach in past few year. In this talk, we will demonstrate our previous achievements on the combination of high Q factors and unidirectional outputs from high Q resonances by tailoring the cavity shapes. Different methods that have to be applied in semi-classical region and wavelength-scale cavities will also be discussed here.