Large coherent acoustic-phonon oscillation observed in InGaN/GaN multiple-quantum wells

被引：47

作者：

Sun, CK ^{[1
]}

Liang, JC

Stanton, CJ

Abare, A

Coldren, L

DenBaars, SP

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Inst Electroopt Engn, Taipei 10617, Taiwan

[3] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[4] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 09期

关键词：

D O I：

10.1063/1.124657

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have observed coherent acoustic-phonon oscillation in InGaN/GaN multiple-quantum wells. With femtosecond pulse excitation, photogenerated carriers screen out the strained-induced piezoelectric field and initiate the coherent acoustic-phonon oscillation. The resulted modulation of the piezoelectric field will then cause large optical property oscillation through the quantum-confined Stark effect. (C) 1999 American Institute of Physics. [S0003-6951(99)01335-2].

引用

页码：1249 / 1251

页数：3

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