Impurity position effects on the linear and nonlinear optical properties of the cubic quantum dot under an external electric field

被引：13

作者：

Kirak, Muharrem ^{[1
]}

Yilmaz, Sait ^{[2
]}

机构：

[1] Bozok Univ, Dept Sci Educ, Fac Educ, TR-66200 Yozgat, Turkey

[2] Bozok Univ, Fac Arts & Sci, Dept Phys, TR-66200 Yozgat, Turkey

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2015年 / 48卷 / 32期

关键词：

quantum dots; hydrogenic impurity; optical properties; REFRACTIVE-INDEX CHANGES; ABSORPTION-COEFFICIENTS; HYDROSTATIC-PRESSURE; HYDROGENIC IMPURITY; BINDING-ENERGY; MAGNETIC-FIELD; DONOR IMPURITY; TEMPERATURE; DENSITY; STATES;

D O I：

10.1088/0022-3727/48/32/325301

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of impurity (on-center and off-center) on electronic and linear and nonlinear optical properties (i.e. absorption coefficients and refractive index changes) are investigated in a cubic quantum dot in the presence of an electric field. The energy levels and wave functions are calculated using a variational method within an effective mass approximation. The results show that the existence of impurity, confinement, electric field, and position of impurity have a great effect on the optical characteristics of the system.

引用

页数：8

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