Terahertz Rotational Spectrum of H 2S
The rotational transition frequencies of H 2S in the terahertz region were measured precisely up to 1.08 THz by a BWO-based scanning spectrometer at Cologne, Germany, and up to 2.56 THz by a laser sideband spectrometer at Lille, France. The data obtained were analyzed together with the available mmW...
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Veröffentlicht in: | Journal of molecular spectroscopy 1995, Vol.173 (2), p.380-390 |
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Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | The rotational transition frequencies of H
2S in the terahertz region were measured precisely up to 1.08 THz by a BWO-based scanning spectrometer at Cologne, Germany, and up to 2.56 THz by a laser sideband spectrometer at Lille, France. The data obtained were analyzed together with the available mmW, sub-mmW, and FIR data using the Watson-type Hamiltonian with the power series expansion of 35 parameters up to
J
10 terms and with the Padé approximation of 24 parameters up to
J
8 terms. The results of the two different fits are compared and discussed. The present measurements are compared with those obtained with a FTIR spectrometer at its low-frequency limit, for the purpose of providing H
2S lines in the terahertz region as an absolute calibrator for FIR FT spectroscopy. |
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ISSN: | 0022-2852 1096-083X |
DOI: | 10.1006/jmsp.1995.1242 |