Linear and nonlinear optical properties of multilayered spherical quantum dots: Effects of geometrical size, hydrogenic impurity, hydrostatic pressure and temperature

被引：82

作者：

Karimi, M. J. ^{[1
]}

Rezaei, G. ^{[2
]}

Nazari, M. ^{[1
,2
]}

机构：

[1] Shiraz Univ Technol, Coll Sci, Dept Phys, Shiraz 71555313, Iran

[2] Univ Yasuj, Coll Sci, Dept Phys, Yasuj 75914353, Iran

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 145卷

关键词：

Multilayered spherical quantum dots; Optical properties; Hydrogenic impurity; Hydrostatic pressure; Temperature; BINDING-ENERGY; 2ND-HARMONIC GENERATION; DEVICE APPLICATIONS; MAGNETIC-FIELDS; DONOR IMPURITY; ELECTRIC-FIELD; GAAS; ABSORPTION; DEPENDENCE; EXCITON;

D O I：

10.1016/j.jlumin.2013.07.046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on the effective mass and parabolic one band approximations, simultaneous effects of the geometrical size, hydrogenic impurity, hydrostatic pressure, and temperature on the intersubband optical absorption coefficients and refractive index changes in multilayered spherical quantum dots are studied. Energy eigenvalues and eigenvectors are calculated using the fourth-order Runge-Kutta method and optical properties are obtained using the compact density matrix approach. The results indicate that the hydrogenic impurity, hydrostatic pressure, temperature and geometrical parameters such as the well and barrier widths have a great influence on the linear, the third-order nonlinear and the total optical absorption coefficients and refractive index changes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：55 / 60

页数：6

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