Generation of infrared surface plasmon resonances with high refractive index sensitivity utilizing tilted fiber Bragg gratings

Allsop, Thomas D.P.; Neal, Ron; Rehman, Saeed; Webb, David J.; Mapps, Des J. and Bennion, Ian (2007). Generation of infrared surface plasmon resonances with high refractive index sensitivity utilizing tilted fiber Bragg gratings. Applied optics, 46 (22), pp. 5456-5460.

Abstract

We demonstrate the use of tilted fiber gratings to assist the generation of localized infrared surface plasmons with short propagation lengths and a sensitivity of d lambda/dn = 3365 nm in the aqueous index regime. It was also found that the resonances could be spectrally tuned over 1000 nm at the same spatial region with high coupling efficiency (in excess of 25 dB) by altering the polarization of the light illuminating the device.

Publication DOI: https://doi.org/10.1364/AO.46.005456
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
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Additional Information: © 2007 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ao-46-22-5456. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: tilted fiber gratings, localized infrared surface plasmons, short propagation lengths, resonances, high coupling efficiency, polarization
Published Date: 2007

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