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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 8 — Apr. 15, 2007
  • pp: 994–996

Metallic subwavelength structures for a broadband infrared absorption control

Gabriel Biener, Avi Niv, Vladimir Kleiner, and Erez Hasman  »View Author Affiliations


Optics Letters, Vol. 32, Issue 8, pp. 994-996 (2007)
http://dx.doi.org/10.1364/OL.32.000994


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Abstract

We present a method to control the absorption of a resonator by using a subwavelength structure consisting of thin metallic plates that behaves as a metamaterial film. We demonstrate the ability to tailor the conductivity of such a metallic subwavelength structure to achieve a resonator with the desired impedance matching for the mid-infrared range. This approach provides for broadband, as well as broad-angle, enhanced absorption. Theoretical analyses, as well as experimental results of the optical properties of a metallic NiCr structure at 8 12 μ m spectral range are introduced.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(110.6820) Imaging systems : Thermal imaging
(300.1030) Spectroscopy : Absorption
(310.0310) Thin films : Thin films

ToC Category:
Spectroscopy

History
Original Manuscript: December 18, 2006
Revised Manuscript: January 17, 2007
Manuscript Accepted: January 21, 2007
Published: March 19, 2007

Citation
Gabriel Biener, Avi Niv, Vladimir Kleiner, and Erez Hasman, "Metallic subwavelength structures for a broadband infrared absorption control," Opt. Lett. 32, 994-996 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-8-994


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