High resolution absorption spectroscopy of NO2

Details High resolution absorption spectroscopy of NO2 High resolution absorption spectroscopy of NO2

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jqsrt..37..449k&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 37, May 1987, p. 449-453.

Computer Science

8

Absorption Cross Sections, Absorption Spectroscopy, Nitrogen Dioxide, Dye Lasers, Pulsed Lasers, Room Temperature, Tunable Lasers

Scientific paper

The absorption cross-section of NO2 has been measured above the 3979 A predissociation limit in the region of 3920 and 3950 A and in the discretely-structured areas around 4112 and 4140 A. Spectra were taken in a dual-beam arrangement using a tunable, pulsed dye laser with 0.05-A bandwidth (FWHM). This represents an improvement of at least a factor of three over the resolution employed in previous studies. Below 3979 A, the spectra are continuous with occasional diffuse rotational lines superimposed. The spectra taken above 4100 A reveal a wealth of structural complexity. Absolute cross-sections taken at 300 K are reported. The work above 4100 A was also performed at 250 K. Only slight variations in the measured cross-sections are observed between these two temperatures.

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