Spontaneous-emission control by photonic crystals and nanocavities

被引：851

作者：

Noda, Susumu ^{[1
]}

Fujita, Masayuki ^{[1
]}

Asano, Takashi ^{[1
]}

机构：

[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan

来源：

NATURE PHOTONICS | 2007年 / 1卷 / 08期

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1038/nphoton.2007.141

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the recent experimental progress in the control of spontaneous emission by manipulating optical modes with photonic crystals. It has been clearly demonstrated that the spontaneous emission from light emitters embedded in photonic crystals can be suppressed by the so-called photonic bandgap, whereas the emission efficiency in the direction where optical modes exist can be enhanced. Also, when an artificial defect is introduced into the photonic crystal, a photonic nanocavity is produced that can interact with light emitters. Cavity quality factors, or Q factors, of up to 2 million have been realized while maintaining very small mode volumes, and both spontaneous-emission modification ( the Purcell effect) and strong-coupling phenomena have been demonstrated. The use of photonic crystals and nanocavities to manipulate spontaneous emission will contribute to the evolution of a variety of applications, including illumination, display, optical communication, solar energy and even quantum-information systems.

引用

页码：449 / 458

页数：10

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