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Effects of external fields on the optical absorption of quantum multirings

S. Ghajarpour-Nobandegani

Department of Physics, Shiraz University of Technology, Shiraz 71555-313, Iran

E-mail Address: s.ghajarpour@sutech.ac.ir

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V. Ashrafi-Dalkhani

Department of Physics, Shiraz University of Technology, Shiraz 71555-313, Iran

E-mail Address: vahid.ashrafi112012@gmail.com

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, and

M. J. Karimi

http://orcid.org/0000-0002-8824-1524

Department of Physics, Shiraz University of Technology, Shiraz 71555-313, Iran

E-mail Address: karimi@sutech.ac.ir

Corresponding author.

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https://doi.org/10.1142/S0217979220501532Cited by:3 (Source: Crossref)

Abstract

In this paper, the effects of the electric and magnetic fields on the optical absorption of GaAs/AlGaAs quantum multirings were studied. Using the two-dimensional finite element method, energy eigenvalues and wavefunctions were calculated, and optical absorption was obtained by the density matrix approach. The result showed that optical absorption increases with increasing number and size of the rings.

Keywords:

PACS: 73.22.-f, 73.63.Hs, 78.20.-e

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