Miniaturization of fiber optic surface plasmon resonance sensor
Miniaturization of fiber optic surface plasmon resonance sensor
A novel design of surface plasmon resonance (SPR) sensor is reported which leads to a highly miniaturized optical fiber sensing element with high sensitivity. A surface plasmon wave is excited on a thin metal film on a side-polished single-mode optical fiber and variations in the refractive index of analyte are detected by measuring changes in the intensity of the light back-reflected from a mirrored end face of the fiber. The operation range of the sensor is tuned toward aqueous media by using a thin tantalum pentoxide overlayer. It is demonstrated that the sensor is capable of detecting changes in the refractive index below 4 × 10-5.
Optical fibers, Optical sensors, Surface plasmon resonance
311-315
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Homola, Jiří
9ae778bd-5e0d-4e3c-9597-17409470a575
Čtyroký, Jiří
1a8cfc78-d014-48d6-a2b5-b9764f7a859a
31 August 1998
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Homola, Jiří
9ae778bd-5e0d-4e3c-9597-17409470a575
Čtyroký, Jiří
1a8cfc78-d014-48d6-a2b5-b9764f7a859a
Slavík, Radan, Homola, Jiří and Čtyroký, Jiří
(1998)
Miniaturization of fiber optic surface plasmon resonance sensor.
Sensors and Actuators, B: Chemical, 51 (1-3), .
(doi:10.1016/S0925-4005(98)00205-6).
Abstract
A novel design of surface plasmon resonance (SPR) sensor is reported which leads to a highly miniaturized optical fiber sensing element with high sensitivity. A surface plasmon wave is excited on a thin metal film on a side-polished single-mode optical fiber and variations in the refractive index of analyte are detected by measuring changes in the intensity of the light back-reflected from a mirrored end face of the fiber. The operation range of the sensor is tuned toward aqueous media by using a thin tantalum pentoxide overlayer. It is demonstrated that the sensor is capable of detecting changes in the refractive index below 4 × 10-5.
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Published date: 31 August 1998
Additional Information:
This research has been supported by the Grant Agency of the Czech Republic under contracts 102/96/1561 and 303/96/1358.
Copyright © 1998 Elsevier Science S.A. All rights reserved.
Keywords:
Optical fibers, Optical sensors, Surface plasmon resonance
Identifiers
Local EPrints ID: 467653
URI: http://eprints.soton.ac.uk/id/eprint/467653
ISSN: 0925-4005
PURE UUID: 9d5c7b30-0fec-4fca-9110-87b1fff8f212
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Date deposited: 18 Jul 2022 18:11
Last modified: 18 Mar 2024 03:12
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Contributors
Author:
Jiří Homola
Author:
Jiří Čtyroký
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