کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1525696 1511844 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tunable band width of negative dielectric constant of gold nanoshells thin film
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Tunable band width of negative dielectric constant of gold nanoshells thin film
چکیده انگلیسی

Negative dielectric constant in gold nanoshells thin film has been investigated by means of Maxwell–Garnett (MG) effective medium model and quasi-static theory. Numerical calculation results show that the real part of average dielectric constant may change from negative, through zero to positive values near the resonance wavelength. The negative band width can be tuned by changing the local environment dielectric or gold shell thickness. The surrounding dielectric constant and thin shell thickness have greater capability to alter the negative wavelength range.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 117, Issues 2–3, 15 October 2009, Pages 343–346
نویسندگان
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