Paper
24 July 2018 Sensing properties of optically controlled metamaterials
Yiyuan Deng, Pengtao Lai, Zuoyu Liu, Yinlei Xie, Zhijian Yan, Jigang Bing, Ping Li, Yuxiang Li
Author Affiliations +
Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108273B (2018) https://doi.org/10.1117/12.2501238
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China
Abstract
The directions of refracted and reflected beams in gradient metasurfaces are governed by the generalized Snell’s law. The metasurface response can also be controlled dynamically by a standing wave formed by two coherent counterpropagating beams. In this work, we study sensing properties of two types of optically controlled metasurfaces. With different ambient dielectrics, the metasurface reveals a shift of coherent absorption spectrum. The thicker the dielectric layer is and the higher its refractive index ise, the more the absorption spectrum moves. Moreover, the intensities of the anomalous scattering light change with the refractive index and thickness of the dielectric layer while the radiation direction is kept unchanged.
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Yiyuan Deng, Pengtao Lai, Zuoyu Liu, Yinlei Xie, Zhijian Yan, Jigang Bing, Ping Li, and Yuxiang Li "Sensing properties of optically controlled metamaterials", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108273B (24 July 2018); https://doi.org/10.1117/12.2501238
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KEYWORDS
Absorption

Antennas

Dielectrics

Metamaterials

Refractive index

Beam controllers

Dielectric polarization

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