کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7920045 1511486 2018 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impurity-related optical response in cylindrical quantum dots with a δ-doped axial potential under an intense laser field
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Impurity-related optical response in cylindrical quantum dots with a δ-doped axial potential under an intense laser field
چکیده انگلیسی
A theoretical study of the effects of a nonresonant intense laser field on the absorption coefficients and refractive index changes for a two-level system associated with transitions from the 1S -like impurity state to the 2Pz -like impurity state in a cylindrical quantum dot with a δ-doped axial potential is performed in the framework of the effective mass approximation. It is found that the nonresonant intense laser field and axial impurity position have obvious effects on the transition matrix elements and also on the difference between the electron densities of the states in cylindrical quantum dots, which are related to the refractive index changes and optical absorption coefficients.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 120, September 2018, Pages 279-286
نویسندگان
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