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An effective triple-band enhanced-infrared-absorption detection by honeycomb-shaped metamaterial-plasmonic absorber
(Elsevier Science Sa, 2019) Aslan, Erdem; Aslan, Ekin; Saracoglu, Omer Galip; Turkmen, Mustafa
Nowadays, accessing to new electromagnetic properties can be realized by fabricating metamaterials consist of artificial functional and subwavelength-scaled structures. Promoting artificial and functional metamaterial designs with large electromagnetic near-field enhancement especially over throughout multiband spectral range can provide critical contributions for infrared spectroscopy applications. In this context, the design and experimental realization of a photonic metamaterial are presented which can be utilized as an infrared biosensor. We utilize a honeycomb-shaped plasmonic nanoantenna for the design of the proposed novel absorber metamaterial. The fabrication and optical characterization of the structures are carried out and the sensor potential of the metamaterial is demonstrated through the detection of a polymer nanofilm. (C) 2019 Elsevier B.V. All rights reserved.