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Self- and Air-Broadening in the ν1and ν3Bands of H2S

✍ Scribed by B. Sumpf; I. Meusel; H.-D. Kronfeldt

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
103 KB
Volume
177
Category
Article
ISSN
0022-2852

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✦ Synopsis

The collisional line broadening of H 2 S transitions in the n 1 and n 3 bands was measured with H 2 S itself and with air as perturbers by applying a diode laser spectrometer in pulsed mode. Altogether 17 lines from the R-branch of the n 1 band (3 £ J Љ £ 17, 0 £ K Љ a £ 6) and 5 lines from the R-branch and 4 lines from the P-branch of the n 3 band (3 £ J Љ £ 9, 1 £ K Љ a £ 7) were investigated. The self-broadening coefficient range is 0.12 cm 01 /atm £ g H 2 S -H 2 S £ 0.22 cm 01 /atm and the air-broadening coefficient range is 0.03 cm 01 /atm £ g H 2 S-air £ 0.11 cm 01 /atm. Within the studied quantum number range we observe a decrease of the broadening coefficient with increasing J Љ and a weak maximum in the K Љ a dependence. The values for the broadening coefficients in the n 1 and n 3 bands do not differ significantly.

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