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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2393–2397

Surface phonon polaritons on SiC substrate for surface-enhanced infrared absorption spectroscopy

Hyun Chul Kim and Xing Cheng  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2393-2397 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002393


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Abstract

We numerically investigate the optical field enhancement in metallic microstructures on the surface of polar dielectrics due to the excitation of surface phonon polaritons (SPhPs). The optical field enhancement at the edge of the microstructures is attributed to the contribution of two components: the resonant coupling of the conventional optical antenna and the excitation of SPhPs. By simulation, we found the amplitude of the local field enhancement is up to 10 6 times. The dependence of field enhancement on incident polarizations and angles is also investigated. The achieved strong field enhancement combined with easy fabrication can potentially lead to promising applications in optical bio-sensing such as surface-enhanced infrared absorption spectroscopy.

© 2010 Optical Society of America

OCIS Codes
(240.6490) Optics at surfaces : Spectroscopy, surface
(260.3060) Physical optics : Infrared
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Optics at Surfaces

History
Original Manuscript: July 6, 2010
Manuscript Accepted: July 28, 2010
Published: October 22, 2010

Citation
Hyun Chul Kim and Xing Cheng, "Surface phonon polaritons on SiC substrate for surface-enhanced infrared absorption spectroscopy," J. Opt. Soc. Am. B 27, 2393-2397 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-11-2393

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