Efficient multiphoton-absorption-induced luminescence in single-crystalline ZnO at room temperature

被引：80
|
作者：
Dai, DC
Xu, SJ
Shi, SL
Xie, MH
Che, CM
机构：
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[2] Univ Hong Kong, HKU CAS Joint Lab New Mat, Hong Kong, Hong Kong, Peoples R China
[3] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
来源：
OPTICS LETTERS | 2005年 / 30卷 / 24期
关键词：
D O I：
10.1364/OL.30.003377
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
At room temperature, multiphoton absorption-(MPA-) induced photoluminescence in ZnO strongly driven by a femtosecond (fs) near-infrared laser is studied. Two-photon absorption and three-photon absorption are proved to be responsible for the intense luminescence, when the wavelength of the fs excitation laser is above and below the half-bandgap of ZnO, respectively. Strong MPA absorption in ZnO is unambiguously evidenced by the interferometric autocorrelation measurements of the luminescence signal. (c) 2005 Optical Society of America.
引用
收藏
页码：3377 / 3379
页数：3
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