کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1810474 1025563 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical property and collective excitation of plasmon in a multiple-quantum-well superlattice in electric field
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Optical property and collective excitation of plasmon in a multiple-quantum-well superlattice in electric field
چکیده انگلیسی
A finite type-I superlattice with different dielectric media on either side of the surfaces is considered under a perturbing electric fields parallel to the superlattice axis on the basis of an infinite square potential well. Using the random-phase approximation, the density-density correlation function including intra- and inter-level transitions in a multiple-quantum-well (MQW) is calculated. The dispersion relations for the surface and the bulk states are obtained as functions of the momentum wave vector and the averaged electric field strength over the quantum well. The Raman intensities due to the bulk and the surface plasmons for the intra- and the inter-level transitions are also obtained for incoming light energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 407, Issue 17, 1 September 2012, Pages 3487-3492
نویسندگان
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