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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 22 — Oct. 29, 2007
  • pp: 14804–14809

Highly sensitive surface plasmon terahertz imaging with planar plasmonic crystals

F. Miyamaru, M. W. Takeda, T. Suzuki, and C. Otani  »View Author Affiliations


Optics Express, Vol. 15, Issue 22, pp. 14804-14809 (2007)
http://dx.doi.org/10.1364/OE.15.014804


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Abstract

We report on the operation of a highly sensitive terahertz imaging system relying on a planar metallic plasmonic crystal as a terahertz surface plasmon resonant (THz-SPR) sensor. The terahertz imaging is based on the resonantly enhanced transmission phenomenon of a periodically perforated metal film. The detection sensitivity and the imaging contrast for small amounts of substance are considerably better than those of the conventional terahertz transmission imaging without a THz-SPR sensor. As a demonstration, a high contrast image of a fingerprint recorded on a thin film can be achieved by using this system.

© 2007 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(240.6680) Optics at surfaces : Surface plasmons
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 5, 2007
Revised Manuscript: October 22, 2007
Manuscript Accepted: October 22, 2007
Published: October 25, 2007

Citation
F. Miyamaru, M. W. Takeda, T. Suzuki, and C. Otani, "Highly sensitive surface plasmon terahertz imaging with planar plasmonic crystals," Opt. Express 15, 14804-14809 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-22-14804


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References

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