Metadevice for intensity modulation with sub-wavelength spatial resolution

被引：14

作者：

Cencillo-Abad, Pablo ^{[1
,2
]}

Zheludev, Nikolay I. ^{[1
,2
,3
,4
]}

Plum, Eric ^{[1
,2
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England

[3] Nanyang Technol Univ, Sch Phys & Math Sci, Ctr Disrupt Photon Technol, Singapore 637371, Singapore

[4] Nanyang Technol Univ, Photon Inst, Singapore 637371, Singapore

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

英国工程与自然科学研究理事会;

关键词：

LIGHT; REFLECTION; CLOAK;

D O I：

10.1038/srep37109

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Effectively continuous control over propagation of a beam of light requires light modulation with pixelation that is smaller than the optical wavelength. Here we propose a spatial intensity modulator with sub-wavelength resolution in one dimension. The metadevice combines recent advances in reconfigurable nanomembrane metamaterials and coherent all-optical control of metasurfaces. It uses nanomechanical actuation of metasurface absorber strips placed near a mirror in order to control their interaction with light from perfect absorption to negligible loss, promising a path towards dynamic diffraction and focusing of light as well as holography without unwanted diffraction artefacts.

引用

页数：7

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