Absorbing metasurface created by diffractionless disordered arrays of nanoantennas

Journal Article · Mon Dec 21 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4938472· OSTI ID:22486261

Chevalier, Paul ^[1]; Bouchon, Patrick; Jaeck, Julien; Lauwick, Diane; Kattnig, Alain ^[1]; Bardou, Nathalie; Pardo, Fabrice ^[2]; Haïdar, Riad ^[1]

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1. Minao, ONERA, The French Aerospace Lab, 91761 Palaiseau (France)
2. Minao, Laboratoire de Photonique et Nanostructures (LPN), CNRS, Université Paris-Saclay, Route de Nozay, 91460 Marcoussis (France)

We study disordered arrays of metal-insulator-metal nanoantenna in order to create a diffractionless metasurface able to absorb light in the 3–5 μm spectral range. This study is conducted with angle-resolved reflectivity measurements obtained with a Fourier transform infrared spectrometer. A first design is based on a perturbation of a periodic arrangement, leading to a significant reduction of the radiative losses. Then, a random assembly of nanoantennas is built following a Poisson-disk distribution of given density, in order to obtain a nearly perfect cluttered assembly with optical properties of a homogeneous material.

• OSTI ID: 22486261
• Journal Information: Applied Physics Letters, Vol. 107, Issue 25; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DESIGN
FOURIER TRANSFORMATION
INFRARED SPECTROMETERS
LOSSES
METALS
PERTURBATION THEORY
RANDOMNESS
REFLECTIVITY