Collisional broadening of nitrous oxide transition lines in the ν1 + 2ν2 band by noble gases |
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| Authors: | AHM Sondag HA van der Liet GH Wegdam |
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| Institution: | Laboratory for Physical Chemistry, University of Amsterdam, Amsterdam, The Netherlands |
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| Abstract: | A tunable diode laser is used to measure the foreign gas broadening for several rotational states in the R branch of the 1200-0000 vibration-rotation band of N2O. The results indicate that rotational relaxation is the chief pressure broadening mechanism. The resulting cross sections for He and Ne turn out to be almost independent of the rotational quantum number. Ar and Kr, however, show a clear dependency. This seems to contradict the results of the infinite order sudden approximation. |
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