期刊
OPTICS AND LASER TECHNOLOGY
卷 98, 期 -, 页码 247-251出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2017.07.043
关键词
Absorbers; Metamaterials; Impedance match
资金
- Key project of science and technology plan of Jilin province [20140204028GX, 20150204068GX]
A wide-angle infrared perfect metamaterial absorber is experimentally verified. The perfect metamaterial absorber shows polarization-independent at normal incidence and displays high absorption rate at a large angle of incidence. The absorption property of the proposed metamaterial absorber is sensitive to the change of refractive index of environmental mediums. An absorption sensor scheme is proposed by combining the concept of the perfect metamaterial absorber and the variation of the refractive index of the environmental medium. Measured results indicate that the proposed absorption sensor scheme achieves high FOM values with different surrounding mediums (air, water, and glucose solution). (C) 2017 Elsevier Ltd. All rights reserved.
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