Monitoring of Gaseous Pollutants by Tunable Diode Lasers

Inhaltsverzeichnis

• I. Atmospheric Trace Gas and Exhaust Gas Analysis.
• Long-path diode laser measurement of industrial air pollution.
• Measurements of atmospheric HCl and NH3 with a mobile tunable diode laser system.
• Atmospheric trace gas measurement on the Schauinsland surveying station.
• Tunable diode laser absorption spectrometry as a reference method for tropospheric measurements.
• Functional testing of a multicomponent diode laser spectrometer (DIOLA) in comparison with the conventional technology.
• Dynamic car exhaust gas analysis using tunable IR diode lasers.
• Measurement of trace species in the remote maritime boundary layer using TDLAS.
• II. Lead Chalcogenide Diode Laser Development.
• Development of lead chalcogenide lasers at Fujitsu.
• Status of lead salt diode laser development at Spectra Physics.
• Recent results in lead-salt laser development at the IPM.
• III. Components and Techniques.
• High frequency modulation spectroscopy with a lead salt diode laser.
• Current status of frequency calibration tables (0 to 3000 cm?1) for tunable diode lasers from heterodyne frequency measurements.
• Oxygen measurement with GaAlAs diode lasers.
• Absorption spectrometry for atmospheric methane: techniques for higher sensitivity..
• Computer controlled diode laser spectrometer.
• An anastigmatic White cell for IR diode laser spectroscopy.
• CO-laser-magnetic-resonance facility for sensitive detection of radical trace gases (NOX, HO2?).
• High-sensitivity frequency modulation spectroscopy with lead-salt diode lasers..
• On the adsorption properties of ammonia to various surfaces.
• IV. Special Applications.
• Application of tunable diode lasers to laboratory studies of atmospheric chemistry: kinetics of the reaction NO3+NO2 --> NO+NO2+O2.
• Monitoring of metal oxides in low pressure flames.
• Diodelaser spectroscopy of transient species in electric discharges.
• Diode laser application for measurements of foreign-gas broadening of v2 band in NH3.
• Carbon monoxide concentrations and temperature measurements in combustion gases.
• V. Photoacoustics.
• Line strength measurement using optoacoustic spectroscopy.
• A novel wide temperature range photoacoustic cell for molecules in the vapour phase.
• Photoacoustic investigation of pesticides.
• Sensitive photoacoustic trace detection of ethylene.
• Photoacoustic detection of ethylene evolution in emasculated Cymbidium and Oncidium orchid flowers..
• List of Participants.
• Index of Authors.