Chaos-Assisted Directional Light Emission from Microcavity Lasers

作     者：Susumu Shinohara Takahisa Harayama Takehiro Fukushima Martina Hentschel Takahiko Sasaki Evgenii E. Narimanov 

作者机构：Max-Planck-Institut für Physik Komplexer Systeme Nöthnitzer Straße 38 D-01187 Dresden Germany NTT Communication Science Laboratories NTT Corporation 2-4 Hikaridai Seika-cho Soraku-gun Kyoto 619-0237 Japan Department of Communication Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Center for Nano Materials and Technology Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan Birck Nanotechnology Center Department of Electrical and Computer Engineering Purdue University 1205 West State Street West Lafayette Indiana 47907-2057 USA 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2010年第104卷第16期

页      面：163902-163902页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：DFG 

主　　题：Refractive index 

摘      要：We study the effect of dynamical tunneling on emission from ray-chaotic microcavities by introducing a suitably designed deformed disk cavity. We focus on its high quality factor modes strongly localized along a stable periodic ray orbit confined by total internal reflection. It is shown that dominant emission originates from the tunneling from the periodic ray orbit to chaotic ones; the latter eventually escape from the cavity refractively, resulting in directional emission that is unexpected from the geometry of the periodic orbit, but fully explained by unstable manifolds of chaotic ray dynamics. Experimentally performing selective excitation of those modes, we succeeded in observing the directional emission in good agreement with theoretical prediction. This provides decisive experimental evidence of dynamical tunneling in a ray-chaotic microcavity.