Calculation of linear and nonlinear optical absorption coefficients of a spherical quantum dot with parabolic potential

Yükleniyor...
Küçük Resim

Tarih

2010

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier Science Bv

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In the effective mass approximation, we calculated the binding energy and wave function for the 1s-, 1p-, 1d- and 1f-states of a spherical quantum dot (QD) with parabolic potential by using a combination of quantum genetic algorithm (QGA) and Hartree-Fock-Roothaan (HFR) method. In addition, we also investigated the linear and the third-order nonlinear optical absorption coefficients as a function of the incident photon energy for the 1s-1p, 1p-1d and 1d-1f transitions. Our results are shown that the existence of impurity has great influence on optical absorption coefficients. Moreover, the optical absorption coefficients are strongly affected by the incident optical intensity, relaxation time, parabolic potential and dot radius.

Açıklama

Anahtar Kelimeler

Spherical Quantum Dot, Binding Energy, Linear and Nonlinear Optical Absorption Coefficient, Parabolic Potential

Kaynak

Optics Communications

WoS Q Değeri

N/A

Scopus Q Değeri

Q2

Cilt

283

Sayı

9

Künye