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Investigation on Rashba spin–orbit interactions in two dimension quantum array for thermal imaging applications
Journal of Optics ( IF 2.1 ) Pub Date : 2020-07-05 , DOI: 10.1088/2040-8986/ab9c72
M Solaimani 1 , Alireza Mobini 2
Affiliation  

In this work, we investigated the optical properties of a two dimensional quantum array using tight binding method in the presence of the Rashba spin–orbit (RSOI) interaction. The results show that ribbon array has sharp peaks with maximum absorption up to 70 (arb. units), at the energy of 95 meV with FHWM of 48 meV that can be used in thermal imaging applications. We have studied the effect of structural parameters like the shape of the array (square or ribbon), number of array sites, number of potential valleys and material on the absorption spectrum. The results show that with migrating from a square shape to ribbon, sharp peaks convert to smaller and larger peaks. Also, the effect of applied external parameters like electric and magnetic fields have been studied. For electrical field, absorption spectrum has symmetry with respect to the applied electrical axis ##IMG## [http://ej.iop.org/images/2040-8986/22/8/085001/joptab9c72ieqn1....] {$\vartheta = \pi /4$}

中文翻译:

热成像应用二维量子阵列中Rashba自旋轨道相互作用的研究

在这项工作中,我们在存在Rashba自旋轨道(RSOI)相互作用的情况下,使用紧密结合方法研究了二维量子阵列的光学性质。结果表明,色带阵列在95meV的能量和48meV的FHWM时具有最大吸收高达70(任意单位)的尖峰,可用于热成像应用。我们已经研究了结构参数(如阵列的形状(正方形或带状),阵列位点的数量,电势谷的数量和材料)对吸收光谱的影响。结果表明,随着从正方形迁移到色带,尖峰转换为越来越大的峰。此外,还研究了施加的外部参数(如电场和磁场)的影响。对于电场
更新日期:2020-07-06
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