A meta-diffraction-grating for visible light

被引：14
|
作者：
Roy, Tapashree [1 ]
Nikolaenko, Andrey E.
Rogers, Edward T. F.
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 BJ, Hants, England
来源：
JOURNAL OF OPTICS | 2013年 / 15卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
planar metamaterials; diffraction-grating; blazed-grating; visible meta-grating;
D O I：
10.1088/2040-8978/15/8/085101
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an experimental realization of a visible range planar diffraction grating, formed by sub-wavelength elements, with periodically variable parameters. At normal incidence the grating exhibits asymmetric diffraction into the positive and negative first diffraction orders and operates at visible wavelengths with peak efficiency at 736 nm wavelength.
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页数：3
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