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ALLSOP, T. NEAL, R. DVOŘÁK, M. KALLI, K. ROZHIN, A. WEBB, D.
Original Title
Physical characteristics of localized surface plasmons resulting from nano-scale structured multi-layer thin films deposited on D-shaped optical fiber
Type
journal article - other
Language
English
Original Abstract
Novel surface plasmonic optical fiber sensors have been fabricated using multiple coatings deposited on a lapped section of a single mode fiber. UV laser irradiation processing with a phase mask produces a nano-scaled surface relief grating structure resembling nano-wires. The resulting individual corrugations produced by material compaction are approximately 20 microm long with an average width at half maximum of 100 nm and generate localized surface plasmons. Experimental data are presented that show changes in the spectral characteristics after UV processing, coupled with an overall increase in the sensitivity of the devices to surrounding refractive index. Evidence is presented that there is an optimum UV dosage (48 joules) over which no significant additional optical change is observed. The devices are characterized with regards to change in refractive index, where significantly high spectral sensitivities in the aqueous index regime are found, ranging up to 4000 nm/RIU for wavelength and 800 dB/RIU for intensity.
Keywords
Surface plasmons; Fiber optics sensors; Nanostructure fabrication; Optical sensing and sensors.
Authors
ALLSOP, T.; NEAL, R.; DVOŘÁK, M.; KALLI, K.; ROZHIN, A.; WEBB, D.
RIV year
2013
Released
31. 7. 2013
ISBN
1094-4087
Periodical
OPTICS EXPRESS
Year of study
21
Number
16
State
United States of America
Pages from
18765
Pages to
18776
Pages count
12
BibTex
@article{BUT101585, author="T. {Allsop} and R. {Neal} and Martin {Dvořák} and K. {Kalli} and A. {Rozhin} and D. J. {Webb}", title="Physical characteristics of localized surface plasmons resulting from nano-scale structured multi-layer thin films deposited on D-shaped optical fiber", journal="OPTICS EXPRESS", year="2013", volume="21", number="16", pages="18765--18776", doi="10.1364/OE.21.018765", issn="1094-4087" }