کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9837312 1525273 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parameters-dependent nonlinear absorptions in InGaN/GaN MQW and GaN film
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Parameters-dependent nonlinear absorptions in InGaN/GaN MQW and GaN film
چکیده انگلیسی
The optical nonlinearities of an InGaN/GaN multiple quantum well (MQW) and a GaN film were experimentally investigated by using femtosecond Z-scan method in this paper. It was observed that the InGaN/GaN MQW displays a nonlinear saturable absorption (SA) effect and the nonlinear absorption coefficient β was determined to be -5.5×103cm/GW; and the GaN film shows a reverse saturable absorption (RSA) effect and the β is 7.5×103cm/GW. It is also found that the absorption cross sections and quantum confinement effect (QCE) give an influence on the SA of the InGaN/GaN MQW structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 370, Issues 1–4, 15 December 2005, Pages 195-199
نویسندگان
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