Computer Science
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jqsrt..43..371b&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 43, May 1990, p. 371-380.
Computer Science
18
Ammonia, Frequency Shift, Laser Spectroscopy, Pressure Broadening, Spectrophotometers, Vibrational Spectra, Carbon Dioxide, Helium, Hydrogen, Nitrogen, Semiconductor Lasers
Scientific paper
Foreign-gas broadening and shift have been measured for transitions in the nu-2, 2nu-2, and nu-4 bands of ammonia using a diode laser spectrophotometer. The measurements were performed by using foreign-gases such as CO2, N2, air, H2, and He at room temperature. The pressure-broadening and shift coefficients may be useful in modeling planetary atmospheres and the recently developed infrared ammonia laser. The experimental results are compared with the Anderson-Tsao-Curnutte theory for broadening CO2 and N2, which have large quadrupole moments. The agreement is satisfactory on the average.
Baldacchini Giuseppe
Bizzarri Andrea
Buffa Giovanni
Nencini L.
Sorge Volker
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