Identification of the new strong 125 um FIR laser line of methanol

Li-Hong Xu

doi:10.1117/12.2303070

1 January 1994 Identification of the new strong 125 um FIR laser line of methanol

Li-Hong Xu

Proceedings Volume 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994; 22501H (1994) https://doi.org/10.1117/12.2303070
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States

Abstract

Recently, a new FIR. laser line was discovered at 125 by optically pumping methanol vapour with the newly discovered 9P(20) hot band line of the CO2 laser. This line is more than two times as powerful as the. strongest previously known FIR line of methanol at 119 4,na. High- resolution Fourier transform spectroscopic results have revealed this new line to be the (nrK,J) = (018,14) Ã¢â‚¬â€* (027,13) transition, pumped in the R(018,13) transition of the CO-stretching band of methanol. This is exactly the same energy level system to which the 119 p.m line belongs, but the offset from the CO2 pumping transition is smaller in the case of the new more powerful 124 pAn line. The spectroscopic value for the wavenumber of the 125 im line is in excellent agreement with the accurate frequency measured by heterodyning.

Citation Download Citation

Li-Hong Xu "Identification of the new strong 125 um FIR laser line of methanol", Proc. SPIE 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994, 22501H (1 January 1994); https://doi.org/10.1117/12.2303070

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