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Title: Absorbing metasurface created by diffractionless disordered arrays of nanoantennas

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.
Authors:
 [1] ;  [2] ; ; ; ;  [1] ; ;  [3] ;  [1] ;  [4]
  1. Minao, ONERA, The French Aerospace Lab, 91761 Palaiseau (France)
  2. (LPN), CNRS, Université Paris-Saclay, Route de Nozay, 91460 Marcoussis (France)
  3. Minao, Laboratoire de Photonique et Nanostructures (LPN), CNRS, Université Paris-Saclay, Route de Nozay, 91460 Marcoussis (France)
  4. (France)
Publication Date:
OSTI Identifier:
22486261
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 25; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DESIGN; FOURIER TRANSFORMATION; INFRARED SPECTROMETERS; LOSSES; METALS; PERTURBATION THEORY; RANDOMNESS; REFLECTIVITY