Standoff chemical detection using quantum-cascade-lasers as pump sources and photoacoustic techniques for sensing is demonstrated for the first time. With <40mW laser power, a chemical detection distance of more than one meter has been achieved.
© 2011 OSA
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(110.5125) Imaging systems : Photoacoustics
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade
X. Chen, D. Janssen, D. Kostov, and F. Choa, "Standoff chemical detection using quantum cascade lasers and photoacoustic sensing techniques," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper JMC1.
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