Effect of position-dependent effective mass on linear and nonlinear optical properties in a quantum dot

被引：31
|
作者：
Khordad, R. [1 ]
机构：
[1] Univ Yasuj, Dept Phys, Coll Sci, Yasuj 75914353, Iran
来源：
INDIAN JOURNAL OF PHYSICS | 2012年 / 86卷 / 06期
关键词：
Intersubband absorption; Refractive index change; Quantum dot; Linear and nonlinear optical properties; HYDROGENIC DONOR IMPURITY; REFRACTIVE-INDEX CHANGES; BINDING-ENERGY; HYDROSTATIC-PRESSURE; ABSORPTION SPECTRA; WELL; SYSTEMS; STATES; FILMS;
D O I：
10.1007/s12648-012-0100-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, the effect of constant effective mass and position-dependent effective mass on the optical properties of a spherical quantum dot has been studied. For this purpose, the intersubband optical absorption coefficient and the refractive index changes are obtained using both a constant effective mass and position-dependent effective mass. According to the results obtained from the present work, we find that spatially varying electron effective mass plays an important role in obtaining the intersubband optical absorption coefficients and refractive index changes in the finite and infinite quantum dots.
引用
收藏
页码：513 / 519
页数：7
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