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Title: Beam-path gas analyzer based on a tunable CO/sub 2/ laser with frequency doubling

In an attempt to bring the high power and versatility of carbon dioxide lasers to bear on atmospheric measurements for pollutants such as carbon monoxide, nitrogen oxides, and sulfur dioxide, the authors propose parametric frequency converters for carbon dioxide laser radiation in the spectral range required. Field measurements are discussed of the densities of a number of atmospheric gas components, including CO, and of the transparency of the atmosphere to beam paths using a beam-path gas analyzer containing a frequency doubler for a carbon dioxide laser based on the zinc phosphide-germanium phosphide monocrystal. The KAMAK MERA-60 computer system 23 does programmed tuning of the carbon dioxide laser radiation wavelength by rotation of a diffraction grating.
Authors:
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Publication Date:
OSTI Identifier:
6328904
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States); Journal Volume: 47:1; Other Information: Translated from Zh. Prikl. Spektrosk.; 47: No. 1, 15-20(Jul 1987)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 47 OTHER INSTRUMENTATION; AIR POLLUTION MONITORS; SENSITIVITY; CARBON DIOXIDE LASERS; FREQUENCY CONVERTERS; DATA ACQUISITION SYSTEMS; POLLUTANTS; LASER SPECTROSCOPY; AIR POLLUTION MONITORING; ATTENUATION; BEAM OPTICS; CALIBRATION; CAMAC SYSTEM; CARBON MONOXIDE; ETHYLENE; GAS ANALYSIS; GASES; GERMANIUM PHOSPHIDES; HELIUM-NEON LASERS; LASER RADIATION; OZONE; TUNING; WATER VAPOR; ZINC PHOSPHIDES; ALKENES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; ELECTROMAGNETIC RADIATION; FLUIDS; GAS LASERS; GERMANIUM COMPOUNDS; HYDROCARBONS; LASERS; MEASURING INSTRUMENTS; MONITORS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOSPHIDES; PHOSPHORUS COMPOUNDS; PNICTIDES; RADIATIONS; SPECTROSCOPY; VAPORS; ZINC COMPOUNDS 500200* -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989); 440300 -- Miscellaneous Instruments-- (-1989)