کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9789573 1512912 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of Overhauser shift in a self-assembled InAlAs quantum dot
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Observation of Overhauser shift in a self-assembled InAlAs quantum dot
چکیده انگلیسی
We report the polarization-dependent energy shift of excitonic emission in a self-assembled InAlAs/AlGaAs quantum dot (QD). The energy shift is well known as Overhauser shift and was observed in a naturally formed GaAs QD using monolayer fluctuation of a quantum well. However, there has been no observation so far in a self-assembled QD, which is suitable for formation of vertically coupled QDs. We demonstrate that the magnitude of the Overhauser shift is enhanced by the photo-injection of the highly polarized electron and is controllable by the polarization of the excitation light in a self-assembled InAlAs QD.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 29, Issues 3–4, November 2005, Pages 510-514
نویسندگان
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