کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5496435 1399849 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Donor impurity-related nonlinear optical rectification in a two-dimensional quantum ring under magnetic field
ترجمه فارسی عنوان
تصحیح نوری غیرخطی مربوط به ناخالصی دونر در یک حلقه کوانتومی دو بعدی تحت میدان مغناطیسی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی


- Impurity-related optical rectification in 2D quantum ring under magnetic field is studied.
- Fermi level and subbands electron density vary strongly with impurity position and magnetic field.
- Optical rectification spectra are sensitive to impurity position and magnetic field intensity.
- Red or blue shift of resonant peaks are induced by changes in field intensity or impurity position.

An investigation of the nonlinear optical rectification of a GaAs two-dimensional disc-shaped quantum ring with an off-center donor impurity under magnetic field has been performed by using a variational method in the effective mass approximation. The two-dimensional quantum ring was described by a pseudo-harmonic potential. The results are presented as functions of the incident photon energy for the different values of the impurity position and the magnetic field. It is found that the nonlinear optical rectification spectra are strongly affected by the position of the off-center impurity and the magnetic field.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 38, 10 October 2017, Pages 3307-3313
نویسندگان
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