کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5025885 1470595 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original research articleEffect of position-dependent effective mass on nonlinear optical properties in a quantum well
ترجمه فارسی عنوان
مقاله پژوهشی اصل اثر جرم مؤثر وابسته به موقعیت بر خواص اپتیکی غیرخطی در یک چاه کوانتومی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی


- A smooth effective mass distribution has been proposed.
- The analytic expressions of the THG coefficients, OA coefficients and RIC in a quantum well using position-dependent effective mass and a constant effective mass are obtained.
- The position-dependent effective mass has a significant impact on the nonlinear optical properties in a quantum well.

In this study, the effect of position-dependent effective mass (PDM) on the nonlinear optical properties in a GaAs/AlAs semiconductor quantum well (QW) are intensively studied. Calculations are performed using both the position-dependent effective mass and a constant effective mass within the framework of the compact-density-matrix approach, iterative method, and coordinate transformation method. We have calculated the third-harmonic generation (THG) coefficients, the optical absorption (OA) coefficients and the refractive index changes (RIC) as a function of the incident photon frequency and obtained the energy eigenvalues and eigenfunctions of the system through solving the Schrödinger equation. The results show that spatially varying electron effective mass has a significant impact on the nonlinear optical properties in a quantum well.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 132, March 2017, Pages 375-381
نویسندگان
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