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.

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页码：721 / 723

页数：3

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