Linear and nonlinear absorption coefficients of spherical two-electron quantum dot
Küçük Resim Yok
Tarih
2015
Yazarlar
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
