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Optical Extinction in a Single Layer of Nanorods

Petru Ghenuche, Grégory Vincent, Marine Laroche, Nathalie Bardou, Riad Haïdar, Jean-Luc Pelouard, and Stéphane Collin
Phys. Rev. Lett. 109, 143903 – Published 4 October 2012
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Abstract

We demonstrate that almost 100% of incident photons can interact with a monolayer of scatterers in a symmetrical environment. Nearly perfect optical extinction through free-standing transparent nanorod arrays has been measured. The sharp spectral opacity window, in the form of a characteristic Fano resonance, arises from the coherent multiple scattering in the array. In addition, we show that nanorods made of absorbing material exhibit a 25-fold absorption enhancement per unit volume compared to unstructured thin film. These results open new perspectives for light management in high-Q, low volume dielectric nanostructures, with potential applications in optical systems, spectroscopy, and optomechanics.

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  • Received 6 February 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.143903

© 2012 American Physical Society

Synopsis

Key Image

Nanoweb Catches Light

Published 4 October 2012

Experiments show that normally transparent nanorods can absorb or reflect nearly 100% of light at a specific wavelength when the rods are arranged in a periodic two-dimensional array.

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Authors & Affiliations

Petru Ghenuche1,2,*, Grégory Vincent2, Marine Laroche3, Nathalie Bardou1, Riad Haïdar2, Jean-Luc Pelouard1, and Stéphane Collin1,†

  • 1Laboratoire de Photonique et Nanostructures (LPN-CNRS), Route de Nozay, 91460 Marcoussis, France
  • 2Onera—The French Aerospace Lab, Chemin de la Hunière, 91761 Palaiseau, France
  • 3Laboratoire Charles Fabry, Institut d’Optique, CNRS, Université Paris-Sud, Campus Polytechnique, RD 128, 91127 Palaiseau cedex, France

  • *Permanent address: Institute for Space Sciences, P.O. Box MG-23, RO-077125 Bucharest-Măgurele, Romania.
  • stephane.collin@lpn.cnrs.fr

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Issue

Vol. 109, Iss. 14 — 5 October 2012

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