کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449483 1512530 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amplitude modulation technique for designing metalenses with apodized and enhanced resolution focal spots
ترجمه فارسی عنوان
تکنولوژی مدولاسیون دامنه برای طراحی فلزات با نقاط کانونی متمایل به نقاط ضعف و انحراف
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this paper we show that engineering both phase and amplitude of the scattered light can be employed in designing metalenses with either higher resolution or apodized focal spots. C-shaped split-ring micro-resonators (CSRRs) with different geometrical parameters are selected to have a full control of amplitude and phase. While phase engineering is necessary for light focusing, amplitude modulation of the scattered wave can be applied to characterize the focal point properties such as resolution gain and sidelobe level. We show that both axial and transverse resolution improvement or apodization is possible in the far-field region by applying proper amplitude function. Amplitude modulation technique, which is introduced in this paper, paves a new way to design efficient lenses which can be utilized in imaging and lithography applications in all frequency ranges.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 393, 15 June 2017, Pages 77-82
نویسندگان
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