Electromagnetically induced grating in double quantum dot system using spontaneously generated coherence

被引：13

作者：

Al-Salhi, Fatima Rabea ^{[1
]}

Al-Khursan, Amin Habbeb ^{[1
]}

机构：

[1] Thi Qar Univ, Sci Coll, Nassiriya Nanotechnol Res Lab NNRL, Nassiriya, Iraq

来源：

CHINESE JOURNAL OF PHYSICS | 2021年 / 70卷

关键词：

Quantum-dot; Electromagnetically induced grating; Spontaneously generated coherence; SPONTANEOUS EMISSION; KERR NONLINEARITY; Y-CONFIGURATION; GAIN; PHASE; ENHANCEMENT; ABSORPTION;

D O I：

10.1016/j.cjph.2020.08.025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A model of electromagnetically induced grating (EIG) assisted by the spontaneously generated coherence (SGC) in the ladder-plus-Y double quantum dot (DQD) system is proposed. Using the density matrix theory, the amplitude and phase of the transmission function are studied. It is shown that the transmission is enhanced by the presence of SGC, and the resultant diffraction intensity can increase by controlling the phase. The SGC-assisted EIG controlled by two, three, and four coupling optical fields are studied respectively. Remarkably, we find that the system acquires a huge diffraction intensity when the wetting layer-quantum dot (WL-QD) field is high in the case of four coupling fields.

引用

页码：140 / 150

页数：11

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