Infrared line positions, linestrengths, and pressure-broadening coefficients are required to determine absolute trace gas concentrations from high-resolution absorption spectra. We have measured these values for the infrared absorption lines in the Ξ½ 12 band (antisymmetric wag) of hydrazine between
Measurement of pressure-induced shifts of infrared lines with a tunable diode laser
β Scribed by P. Varanasi; S. Chudamani
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 194 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0022-4073
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The 3p 5 , 2 P1/2 ~ 2P3/2, fine structure transition in the chlorine atom has been detected using a tunable infrared diode laser operating near 11.3 ~m. Relative spacings of the 35 C1 and 37C1 hyperfine components are in excellent agreement with measurements of atomic beam radiofrequency spectroscop
We have measured absolute line intensities in the 2 fundamental band at 1238 cm Οͺ1 of both isotopomers of hypochlorous acid, HOCl. To obtain the partial pressure of the species in the sample mixture, unavailable through direct measurement since HOCl exists only in equilibrium with H 2 O and Cl 2 O a