Linear and Nonlinear Optical Absorptions of a Donor Impurity in Spherical Quantum Dots

被引：1
|
作者：
Xie Wan-Fang [1 ]
机构：
[1] Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2009年 / 52卷 / 01期
基金：
中国国家自然科学基金;
关键词：
quantum dot; optical absorption; LOW-DIMENSIONAL SYSTEMS; HYDROGENIC IMPURITY; SPECTRUM; CENTERS; STATES; WIRES;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An investigation of the optical properties of a hydrogenic donor in spherical parabolic quantum dots has been performed by using the matrix diagonalization method. The optical absorption coefficient between the ground (L = 0) and the first excited state (L = 1) have been examined based on the computed energies and wave functions. The results are presented as a function of the incident photon energy for the different values of the confinement strength. These results show the effects of the quantum size and the impurity on the optical absorption coefficient of a donor impurity quantum dot.
引用
收藏
页码：155 / 158
页数：4
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