کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1539380 996635 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Calculation of linear and nonlinear optical absorption coefficients of a spherical quantum dot with parabolic potential
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Calculation of linear and nonlinear optical absorption coefficients of a spherical quantum dot with parabolic potential
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 9, 1 May 2010, Pages 1795–1800
نویسندگان
, , ,