Whispering gallery microcavity lasers

被引：551

作者：

He, Lina ^{[1
]}

Oezdemir, Sahin Kaya ^{[1
]}

Yang, Lan ^{[1
]}

机构：

[1] Washington Univ, Dept Elect & Syst Engn, St Louis, MO 63130 USA

来源：

LASER & PHOTONICS REVIEWS | 2013年 / 7卷 / 01期

基金：

美国国家科学基金会;

关键词：

Laser; microcavity; microlaser; WGM; resonator; sensing; STIMULATED RAMAN-SCATTERING; QUANTUM-CASCADE LASERS; UP-CONVERSION; DIRECTIONAL EMISSION; MODE LASER; OPTICAL MICROCAVITY; MICRODISK LASERS; LASING DROPLETS; ENERGY-TRANSFER; FIBER LASER;

D O I：

10.1002/lpor.201100032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Whispering gallery mode (WGM) optical microresonators have attracted intense interests in the past decades. The combination of high quality factors (Q) and small mode volumes of modes in WGM resonators significantly enhances the light-matter interactions, making them excellent cavities for achieving low threshold and narrow linewidth lasers. In this Review, the progress in WGM microcavity lasers is summarized, and the laser performance considering resonator geometries and materials as well as lasing mechanisms is discussed. Label-free detection using WGM resonators has emerged as highly sensitive detection schemes. However, the resolution is mainly limited by the cavity Q factor which determines the mode linewidth. Microcavity lasers, due to their narrow laser spectral width, could greatly improve the detection resolution. Some recent developments in sensing using microcavity lasers are discussed.

引用

页码：60 / 82

页数：23

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