کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1535868 1512637 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of electronic structure, linear and third order nonlinear optical absorption coefficients in the polymeric nanoheterostructure using imaginary time propagation method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Numerical simulation of electronic structure, linear and third order nonlinear optical absorption coefficients in the polymeric nanoheterostructure using imaginary time propagation method
چکیده انگلیسی

In the effective mass approximation, the charge density, the potential profile, the wavefunctions, and the corresponding energy states for zinc sulfide spherical quantum dot have been self-consistently solved, which is embedded in the polymeric media (PVP) by the imaginary time propagation method. Moreover, for the first time, the oscillator strength, linear, third order nonlinear, and total optical absorption coefficients for the transition between intersubbands 1s-1p, 1p-1d, 1d-1f, 1f-1g, 1g-1h, and 1h-1i are investigated with respect to photon energy and the saturation strength has been calculated for every transition too. Calculated result shows that the oscillator strength and the magnitude of optical absorption coefficients are enhanced for transition between intersubbands with higher energies. Also, calculations show that the total absorption coefficient depends on the strength of incident optical intensity and relaxation time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issues 13–14, 15 June 2012, Pages 3001–3006
نویسندگان
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