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Investigation of 13CH3OH methanol: new laser lines and assignments |
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| Authors: | JCS Moraes OP Pizoletto A Scalabrin MD Allen KM Evenson |
| Institution: | Departamento de Física e Química, UNESP, 15385-000 Ilha Solteira, S?o Paulo, Brazil (Fax: 55-018/762-4868, E-mail: joca@fqm.feis.unesp.br), BR Instituto de Física, UNICAMP, 13083-970 Campinas, S?o Paulo, Brazil, BR NIST, Boulder, CO 80303, USA, US |
| Abstract: | We have reinvestigated 13CH3OH as a source of far-infrared (FIR) laser emission using a CO2 laser as a pumping source. Thirty new FIR laser lines in the range 36.5 μm to 202.6 μm were observed and characterized. Five of them have wavelengths between 36.5 and 75 μm and have sufficient intensity to be used in LMR spectroscopy. Using Fourier-transform spectroscopic data in the infrared (IR) and FIR regions we have determined the assignment for 10 FIR laser transitions and predict nine frequencies for laser lines which have yet to be observed. Received: 17 July 2000 / Published online: 6 December 2000 |
| Keywords: | PACS: 33 42 55C 42 55E |
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