Effects of external fields, dimension and pressure on the electromagnetically induced transparency of quantum dots

被引:28
作者
Vaseghi, B. [1 ]
Mohebi, N. [1 ]
机构
[1] Univ Yasuj, Dept Phys, Coll Sci, Yasuj 75914353, Iran
关键词
Electromagnetically induced transparency; Quantum dot; Absorption spectrum; Refractive index; Group velocity index; External fields and pressure; HYDROSTATIC-PRESSURE; MAGNETIC-FIELD; SEMICONDUCTOR; IMPURITY; SPIN;
D O I
10.1016/j.jlumin.2012.08.021
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Effects of external electric and magnetic fields, dimension and pressure on the electromagnetically induced transparency of a pumped-probe GaAs quantum dot are investigated. To study the electromagnetically induced transparency, the probe absorption and group velocity along with refractive index of the medium are discussed. It is found that electromagnetically induced transparency occurs in the system and its frequency, transparency window and group velocity of the probe field strongly depend on the external fields, pressure and the dot size. Significant effects of external factors on the quantum dot structures have the potential applications for implementation of electromagnetically induce transparency, slow lights, optical switches and quantum information storages. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:352 / 357
页数:6
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