@inproceedings{7542c66052d841d8be9844cd723bdcee,
title = "Effects of using lossy materials on the metal-insulator-metal nanostructure absorption spectrum",
abstract = "Metal-insulator-metal metasurfaces (MIM-M) structures can achieve near-unity absorptance at sub-wavelength volumes. A conventional approach to tune the absorption wavelength and the bandwidth of MIM-Ms is to change the geometrical parameters of the structure. In this research, we investigate numerically a new approach to achieve enhanced absorption in MIM-Ms in the mid-infrared spectral region by using both lossy metals and a lossy dielectric. The absorption in the dielectric spacer layer is attributed to the Berreman and epsilon near-zero modes in combination with the dielectric intrinsic loss. The simulations have revealed the presence of additional absorption peaks compared with the case of lossless dielectrics. In particular, the effects of the dielectric thickness and the radiation incident angle on the absorption spectra of the proposed MIM-M structures have been investigated.",
keywords = "Lossy materials, Metal-insulator-metals, Metasurfaces, Mid-infrared, Plasmonics, Selective absorbers",
author = "{Khayat Jafari}, Ahmad and Ayrton Bernussi and {Grave De Peralta}, Luis",
note = "Publisher Copyright: {\textcopyright} 2019 SPIE.; Metamaterials, Metadevices, and Metasystems 2019 ; Conference date: 11-08-2019 Through 15-08-2019",
year = "2019",
doi = "10.1117/12.2528013",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Nader Engheta and Noginov, {Mikhail A.} and Zheludev, {Nikolay I.} and Zheludev, {Nikolay I.}",
booktitle = "Metamaterials, Metadevices, and Metasystems 2019",
}