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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 3 — Feb. 1, 2007
  • pp: 211–213

Plasmon resonances in gold-coated tilted fiber Bragg gratings

Yanina Y. Shevchenko and Jacques Albert  »View Author Affiliations

Optics Letters, Vol. 32, Issue 3, pp. 211-213 (2007)

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The transmission spectrum of fiber Bragg gratings with gratings planes tilted at a small angle (2°–10°) relative to the fiber axis shows a large number of narrowband cladding mode resonances within a 100 nm wide spectrum. When a gold coating with a thickness between 10 and 30 nm is deposited on the fiber, the transmission spectrum shows anomalous features for values of the outside medium refractive index between 1.4211 and 1.4499. These features are shown to correspond to the excitation of surface plasmon resonances at the external surface of the gold film.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 8, 2006
Revised Manuscript: November 3, 2006
Manuscript Accepted: November 6, 2006
Published: January 12, 2007

Yanina Y. Shevchenko and Jacques Albert, "Plasmon resonances in gold-coated tilted fiber Bragg gratings," Opt. Lett. 32, 211-213 (2007)

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