Spherical cavity-mode laser with self-organized CuCl microspheres

被引：18

作者：

Nagai, M

Hoshino, F

Yamamoto, S

Shimano, R

Kuwata-Gonokami, M

机构：

[1] Department of Applied Physics, University of Tokyo, Hongo, Bunkyo-ku

来源：

OPTICS LETTERS | 1997年 / 22卷 / 21期

关键词：

D O I：

10.1364/OL.22.001630

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report lasing of exciton-polaritons in semiconductor microspheres with spherical cavity modes under subpicosecond ultraviolet laser excitation at low temperature. Small bulk crystals of CuCl are melted and formed into fused microspheres with diameters ranging from a few to several tens of micrometers. The threshold for lasing is 1 nJ/pulse, which corresponds to 10(9) photons/pulse. We found that the biexciton-to-longitudinal-exciton transition is responsible for the lasing. (C) 1997 Optical Society of America.

引用

页码：1630 / 1632

页数：3

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