Linear and nonlinear absorption coefficients of spherical two-electron quantum dot

Küçük Resim Yok

Tarih

2015

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

ELSEVIER

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study, optical properties of two-electron quantum dot confined by an infinite spherical potential surface have been investigated. Linear, nonlinear and total absorption coefficients of S -> P, P -> D and D -> F dipole-allowed transitions between singlet-singlet and triplet-triplet states have been calculated as a function of dot radius and photon energy. The results show that the change of dot radius and incident optical intensity effects the peak positions and amplitudes of linear and nonlinear absorption coefficients. Besides, it has been found that the absorption coefficients of transitions between triplet states are stronger than those of the singlet states, and also triplet absorption transitions occur at higher energies. (C) 2014 Elsevier B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

Spherical quantum dot, Linear and nonlinear absorption coefficients, Quantum Genetic Algorithm and Hartree-Fock-Roothaan method

Kaynak

COMPUTER PHYSICS COMMUNICATIONS

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

188

Sayı

Künye