Metadevice for intensity modulation with sub-wavelength spatial resolution.

ABSTRACT: 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.

SUBMITTER: Cencillo-Abad P 

PROVIDER: S-EPMC5114571 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature