Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
Linear and nonlinear intersubband optical absorption coefficients and refractive index changes in a quantum box with finite confining potential
Scopus
Toplam 254 atıf DOI
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-x As 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. © 2006 Elsevier B.V. All rights reserved.
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Atıf Yapan Yayın
Photoionization cross section and refractive-index change of hydrogenic impurities in a CdS-SiO 2 spherical quantum dot
Scopus
Havuzumuzda Open Access 18 atıf almış
In this study, we calculate the photoionization cross section and refractive-index change of an on-center hydrogenic impurity in a CdS-SiO 2 spherical quantum dot. In numerical calculations, both the finite- and infinite-confinement cases are considered and a variational scheme is adopted to determine the energy eigenvalues for the impurity. The variations of the photoionization cross section with the dot radius, the refractive-index change, and the normalized photon energy are investigated, and the effect of the potential-barrier height on the cross section is discussed. The results obtained show that the photoionization cross section and the refractive-index change in CdS-SiO 2 spherical quantum dots are sensitively dependent on the incident optical intensity and on the dot sizes. © 2010 Versita Warsaw and Springer-Verlag Berlin Heidelberg.
Atıf Yapan Makale Bilgileri
Kurumlar (2)
Selçuk Üniversitesi
Selçuklu, Turkey
Yozgat Bozok University
Yozgat, Turkey