Title :
Standoff photoacoustic chemical detection using quantum cascade lasers
Author :
Chen, Xing ; Cheng, Liwei ; Guo, Dingkai ; Choa, Fow-Sen
Author_Institution :
Dept. of CSEE, Univ. of Maryland Baltimore County, Baltimore, MD, USA
Abstract :
Standoff photoacoustic chemical detection using quantum cascade lasers is demonstrated. With 40 mW power the detection distance is extended from 1-2 inches to, currently, 17 feet through component and acoustic coupling improvement.
Keywords :
chemical sensors; measurement by laser beam; photoacoustic spectra; quantum cascade lasers; acoustic coupling; power 40 mW; quantum cascade lasers; size 1 inch to 2 inch; standoff photoacoustic chemical detection; Biology; Electron tubes; Measurement by laser beam; Quantum cascade lasers;
Conference_Titel :
Opto-Electronics and Communications Conference (OECC), 2011 16th
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-61284-288-2
Electronic_ISBN :
978-986-02-8974-9
