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A microfluidic refractometric sensor based on gratings in optical fibre microwires

A microfluidic refractometric sensor based on gratings in optical fibre microwires
A microfluidic refractometric sensor based on gratings in optical fibre microwires
In this paper we investigate a novel method to manufacture gratings in optical fiber microwires and discuss their application to sensing. Gratings can be manufactured by wrapping an optical fiber microwire on a microstructured rod. This method avoids post-processing the thin optical fiber microwire and it has great flexibility: chirping can be realized by designing the air hole size and position in the microstructured rod. By exploiting the large evanescent field in an inner channel, microfluidic refractometric sensors with sensitivity > 10 nm/RIU can be achieved.
1094-4087
20866-20871
Xu, Fei
2d685b99-8205-437a-8e04-12bf73525010
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Lu, Yanqing
a481abcf-3f7c-47c1-95eb-330799e8a432
Xu, Fei
2d685b99-8205-437a-8e04-12bf73525010
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Lu, Yanqing
a481abcf-3f7c-47c1-95eb-330799e8a432

Xu, Fei, Brambilla, Gilberto and Lu, Yanqing (2009) A microfluidic refractometric sensor based on gratings in optical fibre microwires. Optics Express, 17 (23), 20866-20871. (doi:10.1364/OE.17.020866).

Record type: Article

Abstract

In this paper we investigate a novel method to manufacture gratings in optical fiber microwires and discuss their application to sensing. Gratings can be manufactured by wrapping an optical fiber microwire on a microstructured rod. This method avoids post-processing the thin optical fiber microwire and it has great flexibility: chirping can be realized by designing the air hole size and position in the microstructured rod. By exploiting the large evanescent field in an inner channel, microfluidic refractometric sensors with sensitivity > 10 nm/RIU can be achieved.

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Published date: 9 November 2009

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Local EPrints ID: 70924
URI: http://eprints.soton.ac.uk/id/eprint/70924
ISSN: 1094-4087
PURE UUID: 6c45738e-9a7f-43e1-a08f-d8460a42e7c0

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Date deposited: 11 Mar 2010
Last modified: 04 Nov 2019 21:08

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Contributors

Author: Fei Xu
Author: Yanqing Lu

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