Calculation of oscillator strength. and the effects of electric field on energy states, static and dynamic polarizabilities of the confined hydrogen atom

Küçük Resim Yok

Tarih

2014

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

ELSEVIER

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study, we investigate the effect of an electric field on energy states of a spherical quantum dot with infinite confining potential using the perturbation method. We also perform the static dipole and dynamic dipole polarizabilities. In addition, the oscillator strengths have been calculated for the dipole transitions between higher unperturbed states. The results show that impurity and dot radius have an important effect on the Stark shift, and the effect of electric field is insensitive in small dot radii. For the excited states the Stark shift from the first-order increases linearly with the increase of electric field strength. On the other hand, the Stark shift from the first-order decreases with increasing of the magnetic quantum number. A very important future is that, for dot radius region 1.8 a(B) <= R <= 7a(B), the static dipole polarizabilities change very quickly. In addition, it is found that as the dot radius increases, the photon energy corresponding to the singularity of dynamic dipole polarizability decreases. (C) 2013 Elsevier B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

Spherical quantum dot, Electric field, Stark effect, Oscillator strength, Static and dynamic dipole polarizability

Kaynak

OPTICS COMMUNICATIONS

WoS Q Değeri

Q3

Scopus Q Değeri

Cilt

311

Sayı

Künye