Physics of near-wavelength high contrast gratings

被引：130
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
收藏
页码：10888 / 10895
页数：8
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