Studies on the third-harmonic generations in cylindrical quantum dots with an applied electric field

被引：71

作者：

Shao, Shuai ^{[1
]}

Guo, Kang-Xian ^{[1
]}

Zhang, Zhi-Hai ^{[1
]}

Li, Ning ^{[1
]}

Peng, Chao ^{[1
]}

机构：

[1] Guangzhou Univ, Dept Phys, Coll Phys & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2010年 / 48卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Quantum dots; Third harmonic generation; NONLINEAR-OPTICAL RECTIFICATION; ABSORPTION-COEFFICIENTS; 2ND-HARMONIC GENERATION; RAMAN-SCATTERING; SUSCEPTIBILITY; TRANSITIONS; MODEL;

D O I：

10.1016/j.spmi.2010.09.010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The third-harmonic generation (THG) coefficient for cylinder quantum dots with an applied electric field is theoretically investigated Using the compact density-matrix approach and the iterative method we get the analytical expression of the THG coefficient and the numerical calculations of the typical GaAs/AlAs cylinder quantum dots are presented The results show that the THG coefficient can reach the magnitude of 10(-9) m(2)/V-2 Apart from the length L and radius R of cylindrical quantum dots both the parabolic confining potential and an applied electric field can also Influence the THG coefficient (C) 2010 Elsevier Ltd All rights reserved

引用

页码：541 / 549

页数：9

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