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.

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页码：3377 / 3379

页数：3

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