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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 4067–4073

Surface plasmon-enhanced terahertz emission from a hemicyanine self-assembled monolayer

Gopakumar Ramakrishnan, Nishant Kumar, Paul C. M. Planken, Daisuke Tanaka, and Kotaro Kajikawa  »View Author Affiliations


Optics Express, Vol. 20, Issue 4, pp. 4067-4073 (2012)
http://dx.doi.org/10.1364/OE.20.004067


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Abstract

Emission of terahertz radiation is observed when surface plasmons are excited on a thin film of gold, in the Kretschmann geometry. When a hemicyanine-terminated alkanethiol self-assembled monolayer of thickness 1.2 nm is deposited on the gold film, stronger terahertz emission is observed. Our experimental results confirm that enhanced terahertz emission is possible from planar gold surfaces when surface plasmons are excited.

© 2012 OSA

OCIS Codes
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Optics at Surfaces

History
Original Manuscript: January 4, 2012
Revised Manuscript: January 26, 2012
Manuscript Accepted: January 27, 2012
Published: February 2, 2012

Citation
Gopakumar Ramakrishnan, Nishant Kumar, Paul C. M. Planken, Daisuke Tanaka, and Kotaro Kajikawa, "Surface plasmon-enhanced terahertz emission from a hemicyanine self-assembled monolayer," Opt. Express 20, 4067-4073 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-4-4067


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