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

Thomas D.P. Allsop, Ron Neal, Saeed Rehman, David J. Webb, Des J. Mapps, Ian Bennion

Research output: Contribution to journalArticlepeer-review

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 dλ/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. © 2007 Optical Society of America.

Original languageEnglish
Pages (from-to)5456-5460
Number of pages5
JournalApplied Optics
Volume46
Issue number22
DOIs
Publication statusPublished - Aug 2007

Bibliographical note

© 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.

Keywords

  • tilted fiber gratings
  • localized infrared surface plasmons
  • short propagation lengths
  • resonances
  • high coupling efficiency
  • polarization

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