We numerically investigated the peculiar spectral properties in the mid- to long-infrared range of a metamaterial composed of silicon carbide subwavelength oriented wires, deposited onto a silicon substrate. We show how anisotropic ellipsoids can be arranged, choosing both shape and orientation, so that the final resulting emissivity could match the emissivity peaks of hazardous chemicals for different polarizations of the emitted light. As an example, we design a metamaterial-based device that matches the emissivity lines of two explosives, such as XRD (cyclotrimethylenetrinitramine) and TNT (trinitrotoluene), providing a double check in polarization that could increase accuracy and versatility of chemical and biological sensors.

Selective and tunable thermal emission in metamaterials composed of oriented polar inclusions / Larciprete, Maria Cristina; Centini, Marco; LI VOTI, Roberto; Sibilia, Concetta. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - ELETTRONICO. - 34:7(2017), pp. 1459-1464. [10.1364/JOSAB.34.001459]

Selective and tunable thermal emission in metamaterials composed of oriented polar inclusions

LARCIPRETE, Maria Cristina;CENTINI, MARCO;LI VOTI, Roberto;SIBILIA, Concetta
2017

Abstract

We numerically investigated the peculiar spectral properties in the mid- to long-infrared range of a metamaterial composed of silicon carbide subwavelength oriented wires, deposited onto a silicon substrate. We show how anisotropic ellipsoids can be arranged, choosing both shape and orientation, so that the final resulting emissivity could match the emissivity peaks of hazardous chemicals for different polarizations of the emitted light. As an example, we design a metamaterial-based device that matches the emissivity lines of two explosives, such as XRD (cyclotrimethylenetrinitramine) and TNT (trinitrotoluene), providing a double check in polarization that could increase accuracy and versatility of chemical and biological sensors.
2017
Metamaterials; Polaritons; Anisotropic optical materials; Polarization selective devices; Infrared.
01 Pubblicazione su rivista::01a Articolo in rivista
Selective and tunable thermal emission in metamaterials composed of oriented polar inclusions / Larciprete, Maria Cristina; Centini, Marco; LI VOTI, Roberto; Sibilia, Concetta. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - ELETTRONICO. - 34:7(2017), pp. 1459-1464. [10.1364/JOSAB.34.001459]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/983342
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