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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 19 — Sep. 10, 2012
  • pp: 21025–21032

Narrowband terahertz emitters using metamaterial films

Fabio Alves, Brian Kearney, Dragoslav Grbovic, and Gamani Karunasiri  »View Author Affiliations

Optics Express, Vol. 20, Issue 19, pp. 21025-21032 (2012)

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In this article we report on metamaterial-based narrowband thermal terahertz (THz) emitters with a bandwidth of about 1 THz. Single band emitters designed to radiate in the 4 to 8 THz range were found to emit as high as 36 W/m2 when operated at 400 °C. Emission into two well-separated THz bands was also demonstrated by using metamaterial structures featuring more complex unit cells. Imaging of heated emitters using a microbolometer camera fitted with THz optics clearly showed the expected higher emissivity from the metamaterial structure compared to low-emissivity of the surrounding aluminum.

© 2012 OSA

OCIS Codes
(160.3918) Materials : Metamaterials
(290.6815) Scattering : Thermal emission

ToC Category:

Original Manuscript: July 3, 2012
Revised Manuscript: August 24, 2012
Manuscript Accepted: August 26, 2012
Published: August 29, 2012

Fabio Alves, Brian Kearney, Dragoslav Grbovic, and Gamani Karunasiri, "Narrowband terahertz emitters using metamaterial films," Opt. Express 20, 21025-21032 (2012)

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