Physics of near-wavelength high contrast gratings

被引：132

作者：

Karagodsky, Vadim ^{[1
]}

Chang-Hasnain, Connie J. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 10期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

DIFFRACTION GRATINGS; REFLECTORS; VCSELS; LASER; MICROCAVITY; RESONATOR;

D O I：

10.1364/OE.20.010888

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a simple theory explaining the extraordinary features of high-contrast optical gratings in the near-wavelength regime, particularly the very broadband high reflectivity(>99%) and the ultra-high quality factor resonances (Q>10(7)). We present, for the first time, an intuitive explanation for both features using a simple phase selection rule, and reveal the anti-crossing and crossing effects between the grating modes. Our analytical results agree well with simulations and the experimental data obtained from vertical cavity surface emitting lasers incorporating a high contrast grating as top reflector. (c) 2012 Optical Society of America

引用

页码：10888 / 10895

页数：8

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