Title :
Active Coherent Laser Spectrometer (ACLaS) for standoff detection of chemicals
Author :
Macleod, Neil A. ; Weidmann, Damien
Author_Institution :
Space Sci. & Technol. Dept., Rutherford Appleton Lab., Didcot, UK
Abstract :
An active spectrometer has been developed based on diffuse backscattering by solid targets combined with coherent detection and mid-infrared quantum cascade lasers. High selectivity and sensitivity have been shown at standoff distances of 40 m.
Keywords :
backscatter; chemical sensors; infrared spectrometers; measurement by laser beam; organic compounds; quantum cascade lasers; active coherent laser spectrometer; chemical detection; coherent detection; diffuse backscattering; distance 40 m; mid-infrared quantum cascade lasers; selectivity; sensitivity; solid targets; standoff detection; Instruments; Optical diffraction; Optical mixing; Optical reflection; Optical sensors; Quantum cascade lasers; Sensitivity;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
