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dc.contributor.authorWang, Y.
dc.contributor.authorMorawska, P.O.
dc.contributor.authorKanibolotsky, A.L.
dc.contributor.authorSkabara, P.J.
dc.contributor.authorTurnbull, G.A.
dc.contributor.authorSamuel, I.D.W.
dc.date.accessioned2015-04-20T16:31:01Z
dc.date.available2015-04-20T16:31:01Z
dc.date.issued2013-11
dc.identifier.citationWang , Y , Morawska , P O , Kanibolotsky , A L , Skabara , P J , Turnbull , G A & Samuel , I D W 2013 , ' LED pumped polymer laser sensor for explosives ' , Laser & Photonics Reviews , vol. 7 , no. 6 , pp. L71-L76 . https://doi.org/10.1002/lpor.201300072en
dc.identifier.issn1863-8880
dc.identifier.otherPURE: 182408509
dc.identifier.otherPURE UUID: c60f4e2c-0005-46e1-a666-6ca924cabe5f
dc.identifier.otherScopus: 84887130456
dc.identifier.otherORCID: /0000-0002-2132-7091/work/31037463
dc.identifier.urihttp://hdl.handle.net/10023/6527
dc.descriptionThe authors would like to acknowledge financial support for this research from the EPSRC HYPIX project (grant number EP/ F059922/1 and EP/F05999X/1), and the TIRAMISU project, funded by the European Commission's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 284747.en
dc.description.abstractA 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. 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.
dc.language.isoeng
dc.relation.ispartofLaser & Photonics Reviewsen
dc.rights© 2014 the Authors. Laser & Photonics Reviews published by Wiley-VCH Verlag GmbH & Co. KGaA Weinheim. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectDistributed feedback laseren
dc.subjectOrganic semiconductoren
dc.subjectIndirect electrically pumpingen
dc.subjectTriplet excitonen
dc.subjectExplosive sensingen
dc.subjectQC Physicsen
dc.subject.lccQCen
dc.titleLED pumped polymer laser sensor for explosivesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.The University of St Andrewsen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1002/lpor.201300072
dc.description.statusPeer revieweden


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