کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1537227 996582 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microscopic model of the THz field enhancement in a metal nanoslit
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Microscopic model of the THz field enhancement in a metal nanoslit
چکیده انگلیسی

We discuss the strong THz-field enhancement effect in a metal slit of dozens of nanometers sizes reported recently. Proposed simple microscopic model considers electric charges induced at the edges of the slit by a polarized incident wave. These charges contribute then to the field in the slit. The model is capable of explaining peculiarities of the field enhancement phenomenon such as an inverse frequency dependence of the enhancement factor. It provides closed-form expressions for the enhancement factor and field mapping inside the slit having only one fitting parameter. The model predicts influence of the slit shape on the field enhancement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 284, Issue 23, 1 November 2011, Pages 5495–5500
نویسندگان
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