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Optics Letters

Optics Letters


  • Vol. 30, Iss. 17 — Sep. 1, 2005
  • pp: 2218–2220

Tapered fiber optic surface plasmon resonance sensor for analyses of vapor and liquid phases

Yoon-Chang Kim, Wei Peng, Soame Banerji, and Karl S. Booksh  »View Author Affiliations

Optics Letters, Vol. 30, Issue 17, pp. 2218-2220 (2005)

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We report a new approach to analyze both vapor and liquid phases by utilizing a tapered fiber optic surface plasmon resonance (SPR) probe. This technique employs a fiber optic SPR probe with a modified geometry to tune the SPR coupling wavelength-angle pair. The observed composite spectrum included two distinct SPR dips associated with surface plasmons excited in the gas and liquid active regions. This sensor is able to detect refractive index changes in both vapor and liquid phases individually by simultaneous monitoring SPR coupling wavelengths from the two sensing surfaces.

© 2005 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves

Yoon-Chang Kim, Wei Peng, Soame Banerji, and Karl S. Booksh, "Tapered fiber optic surface plasmon resonance sensor for analyses of vapor and liquid phases," Opt. Lett. 30, 2218-2220 (2005)

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