Linear and nonlinear intersubband optical absorption coefficients and refractive index changes in a quantum box with finite confining potential
Küçük Resim Yok
Tarih
2006
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, both the intersubband optical absorption coefficients and the refractive index changes are calculated exactly in a quantum box. Analytical expressions for the linear and nonlinear intersubband absorption coefficients and refractive index changes are obtained by using the compact-density matrix approach. Numerical results are presented for typical GaAs/AlxGa1-xAs quantum box system. The linear, third-order nonlinear and total absorption and refractive index changes are investigated as a function of the incident optical intensity and structure parameters such as box-edge length and stoichiometric ratio. Our results show that both the incident optical intensity and the structure parameters have a great effect on the total absorption and refractive index changes. (c) 2006 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
quantum box, intersubband transitions, nonlinear optical properties
Kaynak
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
33
Sayı
2
