High quality factors and room-temperature lasing in a modified single-defect photonic crystal cavity

被引：36
|
作者：
Loncar, M
Hochberg, M
Scherer, A
Qiu, YM
机构：
[1] CALTECH, Dept Elect Engn & Appl Phys, Pasadena, CA 91125 USA
[2] CALTECH, Jet Prop Lab, In Situ Technol & Expt Syst Sect, Pasadena, CA 91109 USA
来源：
OPTICS LETTERS | 2004年 / 29卷 / 07期
关键词：
D O I：
10.1364/OL.29.000721
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and analyze a new photonic crystal cavity design that supports a dipole mode with a quality factor greater than 20,000. Such a high quality factor is obtained by precise tuning of the cavity length with minimal disruption of the surrounding photonic crystal. A fabrication procedure based on dry etching of InGaAsP material in HI/H-2/Ar is used to demonstrate photonic crystal lasers with smooth and straight sidewalls. These room-temperature lasers concentrate optical energy in air and are suitable for use as tunable lasers and chemical sensors. (C) 2004 Optical Society of America.
引用
收藏
页码：721 / 723
页数：3
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