Two-photon absorption study of GaN

被引：100
|
作者：
Sun, CK [1 ]
Liang, JC
Wang, JC
Kao, FJ
Keller, S
Mack, MP
Mishra, U
DenBaars, SP
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 10617, Taiwan
[3] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan
[4] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
[5] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
来源：
APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 04期
关键词：
D O I：
10.1063/1.125780
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Two-photon absorption coefficients of GaN for below band gap ultraviolet wavelength and midgap infrared wavelength were measured by using femtosecond pulsewidth autocorrelation and Z-scan techniques. Large two-photon absorption coefficients were obtained. Taking advantage of the large two-photon absorption, we have demonstrated two-photon confocal imaging of a GaN thin film. Direct correlation was found between the yellow luminescence and suppression of bandedge luminescence. (C) 2000 American Institute of Physics. [S0003-6951(00)04404-1].
引用
收藏
页码：439 / 441
页数：3
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