Line Strengths and Self-Broadening of Pure Rotational Lines of Carbon Monoxide and Nitrous Oxide Measured by Terahertz Time-Domain Spectroscopy
| Main Authors: | Aenchbacher, W., Naftaly, M., Dudley, R. |
|---|---|
| Format: | info Proceeding |
| Terbitan: |
, 2010
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/18015 |
Daftar Isi:
- Terahertz time-domain spectroscopy was used to obtain the line intensities and selfbroadening parameters of pure rotational lines of CO and N2O. The technique yields a direct measurement of an absorption spectrum from 0:2 THz to 3 THz, which is linear in amplitude, therefore allowing the profiles of multiple lines to be observed and quantified. The transitions studied in CO were from J′ = 3 <- 2 to J′ = 22 <- 21, and in N2O from J′ = 9 <- 8 to J′ = 52 <- 51. The gas spectra were measured at elevated pressures in the range of 0:7-5 bar for CO and 0:7-1:7 bar for N2O. The measured absorption spectra were analyzed assuming a Lorentzian lineshape and using a multiple-peak fitting procedure. The obtained values of the line intensities and self-broadening parameters are in good agreement with the HITRAN database.
- Session III-3.