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Multi-line fit model for the detection of methane at v2 + 2v3 band using hollow-core photonic bandgap fibres

Multi-line fit model for the detection of methane at v2 + 2v3 band using hollow-core photonic bandgap fibres
Multi-line fit model for the detection of methane at v2 + 2v3 band using hollow-core photonic bandgap fibres
Hollow-core photonic bandgap fibres (HC-PBFs) have emerged as a novel technology in the field of gas sensing. The long interaction pathlengths achievable with these fibres are especially advantageous for the detection of weakly absorbing gases. In this work, we demonstrate the good performance of a HC-PBF in the detection of the v2 + 2v3 band of methane, at 1.3 µm. The Q-branch manifold, at 1331.55 nm, is targeted for concentration monitoring purposes. A computationally optimized multi-line model is used to fit the Q-branch. Using this model, a detection limit of 98 ppmv (parts per million by volume) is estimated.
1424-8220
490-502
Cubillas, A.M.
333991f8-a83a-4edf-a79a-38ce16a29450
Lazaro, J.M.
ad33d08a-035e-42b3-8b73-ce2c8fe17c41
Conde, O.M.
0ec97d1c-778e-487a-b486-3bae32a4bf44
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
López-Higuera, J.M.
acf3b7bd-9a4e-44b1-b0d9-f8d944dc30d4
Cubillas, A.M.
333991f8-a83a-4edf-a79a-38ce16a29450
Lazaro, J.M.
ad33d08a-035e-42b3-8b73-ce2c8fe17c41
Conde, O.M.
0ec97d1c-778e-487a-b486-3bae32a4bf44
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
López-Higuera, J.M.
acf3b7bd-9a4e-44b1-b0d9-f8d944dc30d4

Cubillas, A.M., Lazaro, J.M., Conde, O.M., Petrovich, M.N. and López-Higuera, J.M. (2009) Multi-line fit model for the detection of methane at v2 + 2v3 band using hollow-core photonic bandgap fibres. Sensors, 9 (1), 490-502. (doi:10.3390/s90100490).

Record type: Article

Abstract

Hollow-core photonic bandgap fibres (HC-PBFs) have emerged as a novel technology in the field of gas sensing. The long interaction pathlengths achievable with these fibres are especially advantageous for the detection of weakly absorbing gases. In this work, we demonstrate the good performance of a HC-PBF in the detection of the v2 + 2v3 band of methane, at 1.3 µm. The Q-branch manifold, at 1331.55 nm, is targeted for concentration monitoring purposes. A computationally optimized multi-line model is used to fit the Q-branch. Using this model, a detection limit of 98 ppmv (parts per million by volume) is estimated.

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Published date: 14 January 2009

Identifiers

Local EPrints ID: 65782
URI: https://eprints.soton.ac.uk/id/eprint/65782
ISSN: 1424-8220
PURE UUID: cf02fca1-766c-47e1-b14a-0dee4db26619
ORCID for M.N. Petrovich: ORCID iD orcid.org/0000-0002-3905-5901

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Date deposited: 23 Mar 2009
Last modified: 05 Dec 2019 01:37

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