Title :
Photoacoustic gas detection with LED QEPAS
Author :
Böttger, Stefan ; Angelmahr, Martin ; Schade, Wolfgang
Author_Institution :
Energie-Forschungszentrum Niedersachsen, Goslar, Germany
Abstract :
Various configurations and applications have been investigated and realized since the pioneering introduction of quartz-enhanced photoacoustic spectroscopy (QEPAS) by Kosterev et al. in 2002. However, the required submillimeter diameter of the acoustic resonator demands an excellent beam quality of laser source and precise adjustments of the QEPAS system. In a new approach, the off-beam resonator scheme is proposed for avoiding these demands of conventional QEPAS systems.
Keywords :
acoustic resonators; gas sensors; laser beams; photoacoustic spectroscopy; quartz; LED QEPAS; acoustic resonator; laser beam quality; laser source; photoacoustic gas detection; quartz-enhanced photoacoustic spectroscopy; Acoustic beams; Acoustics; Laser beams; Light sources; Measurement by laser beam; Optimized production technology; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943094
