Room-temperature gain spectra and lasing in microcrystalline ZnO thin films

被引：83

作者：

Yu, P

Tang, ZK

Wong, GKL

Kawasaki, M

Ohtomo, A

Koinuma, H

Segawa, Y

机构：

[1] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong

[2] Tokyo Inst Technol, JSTS, CREST, Ceram Mat & Struct Lab,Midori Ku, Yokohama, Kanagawa 227, Japan

[3] RIKEN, Inst Phys & Chem Res, Photodynam Res Ctr, Aoba Ku, Sendai, Miyagi 980, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 1998年 / 184卷

关键词：

ZnO; room-temperature lasing; optical gain;

D O I：

10.1016/S0022-0248(97)00634-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We report room-temperature measurements of optical gain and gain spectra of ultraviolet emission from ZnO thin film. An optical gain of 300 cm(-1) is measured at a fluence of 3.8 mu J/cm(2). The large gain is attributed to the modification of the spontaneous emission rate by the dielectric photonic structure of these films. The presence of excitonic gain is also observed in the room-temperature gain spectra. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：601 / 604

页数：4

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