Nonlinear optical absorption via two-photon process in asymmetrical Gaussian potential quantum wells

被引：18

作者：

Huynh Vinh Phuc ^{[1
]}

Luong Van Tung ^{[1
]}

Pham Tuan Vinh ^{[1
,2
]}

Le Dinh ^{[2
]}

机构：

[1] Dong Thap Univ, Div Theoret Phys, Dong Thap, Vietnam

[2] Hue Univ, Ctr Theoret & Computat Phys, Hue, Vietnam

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 77卷

关键词：

Nonlinear optics; Phonon-assisted cyclotron resonance; Half-width; Gaussian potential; Electric field; REFRACTIVE-INDEX CHANGES; ASSISTED CYCLOTRON-RESONANCE; HYDROSTATIC-PRESSURE; MAGNETIC-FIELD; LASER FIELD; INTERSUBBAND TRANSITIONS; HYDROGENIC IMPURITY; DONOR IMPURITY; COEFFICIENTS; RECTIFICATION;

D O I：

10.1016/j.spmi.2014.11.024

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, linear and nonlinear optical absorption spectrum in asymmetrical Gaussian potential quantum wells under the applied magnetic and electric fields are studied via investigating the phonon-assisted cyclotron resonance (PACR) effect. The results are calculated for GaAs and Ga1-xAlxAs materials. Our results show that the optical absorption behaviors and the half-width are significantly dependent on the height of the Gaussian potential, the well width, the magnetic field, and the temperature. It is also found that there is a clear monotonic behavior of the resonant peaks and the half-width as functions of the factors mentioned above in both one and two-photon absorption processes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：267 / 275

页数：9

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