Simultaneous inhibition and redistribution of spontaneous light emission in photonic crystals

被引：413

作者：

Fujita, M ^{[1
]}

Takahashi, S ^{[1
]}

Tanaka, Y ^{[1
]}

Asano, T ^{[1
]}

Noda, S ^{[1
]}

机构：

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

来源：

SCIENCE | 2005年 / 308卷 / 5726期

关键词：

D O I：

10.1126/science.1110417

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Inhibiting spontaneous light emission and redistributing the energy into useful forms are desirable objectives for advances in various fields, including photonics, illuminations, displays, solar cells, and even quantum-information systems. We demonstrate both the "inhibition" and "redistribution" of spontaneous light emission by using two-dimensional (2D) photonic crystals, in which the refractive index is changed two-dimensionally. The overall spontaneous emission rate is found to be reduced by a factor of 5 as a result of the 2D photonic bandgap effect. Simultaneously, the light energy is redistributed from the 2D plane to the direction normal to the photonic crystal.

引用

收藏

页码：1296 / 1298

页数：3

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