Title :
Standoff chemical detection using quantum cascade lasers and photoacoustic sensing techniques
Author :
Chen, Xing ; Janssen, Douglas ; Kostov, Dan ; Choa, Fow-Sen
Author_Institution :
Dept of CSEE, Univ. of Maryland, Baltimore, MD, USA
Abstract :
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.
Keywords :
gas sensors; optical pumping; photoacoustic effect; quantum cascade lasers; remote sensing by laser beam; photoacoustic sensing techniques; pump sources; quantum cascade lasers; remote sensing; standoff chemical detection; trace gas sensing; Chemical lasers; Chemicals; Microphones; Power lasers; Pump lasers; Quantum cascade lasers; Sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
