LED pumped polymer laser sensor for explosives

A very compact explosive vapor sensor is demonstrated based on a distributed feedback polymer laser pumped by a commercial InGaN light-emitting diode. The laser shows a two-stage turn on of the laser emission, for pulsed drive currents above 15.7 A. The ‘double-threshold’ phenomenon is attributed to...

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Detalles Bibliográficos
Autores principales: Wang, Yue, Morawska, Paulina O, Kanibolotsky, Alexander L, Skabara, Peter J, Turnbull, Graham A, Samuel, Ifor D W
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BlackWell Publishing Ltd 2013
Materias:
Letters
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4374702/
https://www.ncbi.nlm.nih.gov/pubmed/25821526
http://dx.doi.org/10.1002/lpor.201300072
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author Wang, Yue
Morawska, Paulina O
Kanibolotsky, Alexander L
Skabara, Peter J
Turnbull, Graham A
Samuel, Ifor D W
author_facet Wang, Yue
Morawska, Paulina O
Kanibolotsky, Alexander L
Skabara, Peter J
Turnbull, Graham A
Samuel, Ifor D W
author_sort Wang, Yue
collection PubMed
description A very compact explosive vapor sensor is demonstrated based on a distributed feedback polymer laser pumped by a commercial InGaN light-emitting diode. The laser shows a two-stage turn on of the laser emission, for pulsed drive currents above 15.7 A. The ‘double-threshold’ phenomenon is attributed to the slow rise of the ∼30 ns duration LED pump pulses. The laser emits a 533 nm pulsed output beam of ∼10 ns duration perpendicular to the polymer film. When exposed to nitroaromatic model explosive vapors at ∼8 ppb concentration, the laser shows a 46% change in the surface-emitted output under optimized LED excitation.
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spelling pubmed-43747022015-03-27 LED pumped polymer laser sensor for explosives Wang, Yue Morawska, Paulina O Kanibolotsky, Alexander L Skabara, Peter J Turnbull, Graham A Samuel, Ifor D W Laser Photon Rev Letters A very compact explosive vapor sensor is demonstrated based on a distributed feedback polymer laser pumped by a commercial InGaN light-emitting diode. The laser shows a two-stage turn on of the laser emission, for pulsed drive currents above 15.7 A. The ‘double-threshold’ phenomenon is attributed to the slow rise of the ∼30 ns duration LED pump pulses. The laser emits a 533 nm pulsed output beam of ∼10 ns duration perpendicular to the polymer film. When exposed to nitroaromatic model explosive vapors at ∼8 ppb concentration, the laser shows a 46% change in the surface-emitted output under optimized LED excitation. BlackWell Publishing Ltd 2013-11 2013-10-08 /pmc/articles/PMC4374702/ /pubmed/25821526 http://dx.doi.org/10.1002/lpor.201300072 Text en © 2014 The Authors. Laser & Photonics Reviews published by Wiley-VCH Verlag GmbH & Co. KGaA Weinheim http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Letters
Wang, Yue
Morawska, Paulina O
Kanibolotsky, Alexander L
Skabara, Peter J
Turnbull, Graham A
Samuel, Ifor D W
LED pumped polymer laser sensor for explosives
title LED pumped polymer laser sensor for explosives
title_full LED pumped polymer laser sensor for explosives
title_fullStr LED pumped polymer laser sensor for explosives
title_full_unstemmed LED pumped polymer laser sensor for explosives
title_short LED pumped polymer laser sensor for explosives
title_sort led pumped polymer laser sensor for explosives
topic Letters
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4374702/
https://www.ncbi.nlm.nih.gov/pubmed/25821526
http://dx.doi.org/10.1002/lpor.201300072
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AT kanibolotskyalexanderl ledpumpedpolymerlasersensorforexplosives
AT skabarapeterj ledpumpedpolymerlasersensorforexplosives
AT turnbullgrahama ledpumpedpolymerlasersensorforexplosives
AT samuelifordw ledpumpedpolymerlasersensorforexplosives

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