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Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas

  • Patrick Bouchon
  • , Charlie Koechlin
  • , Fabrice Pardo
  • , Riad Haïdar
  • , Jean Luc Pelouard

Research output: Contribution to journalArticlepeer-review

Abstract

In this Letter, we demonstrate experimentally that a patchwork of four metal-insulator-metal patches leads to an unpolarized wideband omnidirectional infrared absorption. Our structure absorbs 70% of the incident light on a 2.5 μm bandwidth at 8.5 μm. It paves the way to the design of wideband efficient plasmonic absorbers in the infrared spectrum.

Original languageEnglish
Pages (from-to)1038-1040
Number of pages3
JournalOptics Letters
Volume37
Issue number6
DOIs
Publication statusPublished - 15 Mar 2012

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