LED pumped polymer laser sensor for explosives

Y. Wang; P.O. Morawska; A.L. Kanibolotsky; P.J. Skabara; G.A. Turnbull; I.D.W. Samuel

doi:10.1002/lpor.201300072

LED pumped polymer laser sensor for explosives

Y. Wang, P.O. Morawska, A.L. Kanibolotsky, P.J. Skabara, G.A. Turnbull, I.D.W. Samuel

Research output: Contribution to journal › Article › peer-review

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. 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.

Original language	English
Pages (from-to)	L71-L76
Journal	Laser & Photonics Reviews
Volume	7
Issue number	6
Early online date	8 Oct 2013
DOIs	https://doi.org/10.1002/lpor.201300072
Publication status	Published - Nov 2013

Keywords

Distributed feedback laser
Organic semiconductor
Indirect electrically pumping
Triplet exciton
Explosive sensing

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10.1002/lpor.201300072

Wang_2013_LPR_LED_CC
© 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.
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TIRAMISU: EU FP7 Collab. TIRAMISU FW7 Security
Turnbull, G. (PI)
European Commission
1/05/12 → 31/12/15
Project: Standard
Hybrid organic semiconductor/ gallium: Hybrid Organic Semiconductor Gallium Nitride CMOS smart pixel arrays
Samuel, I. D. W. (PI) & Turnbull, G. (CoI)
EPSRC
1/10/08 → 30/09/12
Project: Standard

Cite this

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title = "LED pumped polymer laser sensor for explosives",

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. 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.",

keywords = "Distributed feedback laser, Organic semiconductor, Indirect electrically pumping, Triplet exciton, Explosive sensing",

author = "Y. Wang and P.O. Morawska and A.L. Kanibolotsky and P.J. Skabara and G.A. Turnbull and I.D.W. Samuel",

note = "The 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. ",

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AU - Wang, Y.

AU - Morawska, P.O.

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AU - Skabara, P.J.

AU - Turnbull, G.A.

AU - Samuel, I.D.W.

N1 - The 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.

PY - 2013/11

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N2 - 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. 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.

AB - 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. 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.

KW - Distributed feedback laser

KW - Organic semiconductor

KW - Indirect electrically pumping

KW - Triplet exciton

KW - Explosive sensing

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DO - 10.1002/lpor.201300072

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VL - 7

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JO - Laser & Photonics Reviews

JF - Laser & Photonics Reviews

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ER -

LED pumped polymer laser sensor for explosives

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Projects

TIRAMISU: EU FP7 Collab. TIRAMISU FW7 Security

Hybrid organic semiconductor/ gallium: Hybrid Organic Semiconductor Gallium Nitride CMOS smart pixel arrays

Cite this