High-finesse disk microcavity based on a circular Bragg reflector

被引：59

作者：

Labilloy, D ^{[1
]}

Benisty, H

Weisbuch, C

Krauss, TF

Smith, CJM

Houdre, R

Oesterle, U

机构：

[1] Ecole Polytech, Phys Mat Condensee Lab, CNRS, URA 1254, F-91128 Palaiseau, France

[2] Univ Glasgow, Dept Elect & Elect Engn, Glasgow G12 8LT, Lanark, Scotland

[3] Ecole Polytech Fed Lausanne, Inst Micro & Optoelect, CH-1015 Lausanne, Switzerland

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.121880

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We made disk-shaped microcavities of approximately 10 mu m(2) in area in a GaAs/AlGaAs waveguide structure by etching deep vertical concentric trenches, The trenches form 3 circular Bragg-like reflector that confines light in the remaining two lateral dimensions. We demonstrate from photoluminescence excited in the waveguide the confinement of discrete disk modes whose wave vector is mainly radial, in contrast with whispering gallery modes. Their quality factors up to Q = 650 indicate in-plane reflectivities approaching 90%. In the near infrared, this represents a demonstration of wavelength-scale Light confinement based on photonic crystal effects in two dimensions. (C) 1998 American Institute of Physics. [S0003-6951(98)00336-2].

引用

页码：1314 / 1316

页数：3

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