title: Trace gas absorption spectroscopy using laser difference-frequency spectrometer for environmental application.
abstract: A widely tunable infrared spectrometer based on difference frequency generation (DFG) has been developed for organic trace gas detection by laser absorption spectroscopy. On-line measurements of concentration of various hydrocarbons, such as acetylene, benzene, and ethylene, were investigated using high-resolution DFG trace gas spectroscopy for highly sensitive detection.
authors.affiliation: MREID, Universite du Littoral, Dunkerque, France. chen@univ-littoral.fr
authors.forename: W
authors.initials: W
authors.lastname: Chen
authors.forename: F
authors.initials: F
authors.lastname: Cazier
authors.forename: D
authors.initials: D
authors.lastname: Boucher
authors.forename: F K
authors.initials: FK
authors.lastname: Tittel
authors.forename: P B
authors.initials: PB
authors.lastname: Davies
mesh_terms: D000114:Acetylene / Q000032:analysis; D001554:Benzene / Q000032:analysis; D004784:Environmental Monitoring / Q000295:instrumentation*; D005030:Ethylenes / Q000032:analysis; D005740:Gases / Q000032:analysis*; D007834:Lasers; D012680:Sensitivity and Specificity; D013055:Spectrophotometry, Infrared / Q000295:instrumentation
chemical_list: D005030:Ethylenes; D005740:Gases; C036216:ethylene; D001554:Benzene; D000114:Acetylene
keywords: NASA Discipline Life Sciences Technologies; Non-NASA Center