Chaos-Assisted Directional Light Emission from Microcavity Lasers

被引:125
作者
Shinohara, Susumu [1 ]
Harayama, Takahisa [2 ]
Fukushima, Takehiro [3 ]
Hentschel, Martina [1 ]
Sasaki, Takahiko [4 ]
Narimanov, Evgenii E. [5 ]
机构
[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[2] NTT Corp, NTT Commun Sci Labs, Seika, Kyoto 6190237, Japan
[3] Okayama Prefectural Univ, Dept Commun Engn, Okayama 7191197, Japan
[4] Japan Adv Inst Sci & Technol, Ctr Nano Mat & Technol, Nomi, Ishikawa 9231292, Japan
[5] Purdue Univ, Birck Nanotechnol Ctr, Dept Elect & Comp Engn, W Lafayette, IN 47907 USA
关键词
DIELECTRIC MICROCAVITIES; OPTICAL CAVITIES; RESONATORS; RESONANCES;
D O I
10.1103/PhysRevLett.104.163902
中图分类号
O4 [物理学];
学科分类号
0702 ;
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.
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页数:4
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