Wang, Y., Morawska, P. O., Kanibolotsky, A. L., Skabara, P. J. , Turnbull, G. A. and Samuel, I. D.W. (2013) LED pumped polymer laser sensor for explosives. Laser and Photonics Reviews, 7(6), L71-L76. (doi: 10.1002/lpor.201300072) (PMID:25821526) (PMCID:PMC4374702)
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Abstract
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.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Skabara, Professor Peter |
Authors: | Wang, Y., Morawska, P. O., Kanibolotsky, A. L., Skabara, P. J., Turnbull, G. A., and Samuel, I. D.W. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Laser and Photonics Reviews |
Publisher: | Wiley |
ISSN: | 1863-8880 |
ISSN (Online): | 1863-8899 |
Published Online: | 08 October 2013 |
Copyright Holders: | Copyright © 2014 The Authors |
First Published: | First published in Laser and Photonics Reviews 7(6):L71-L76 |
Publisher Policy: | Reproduced under a Creative Commons License |
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