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Proceedings Paper

Identification of the new strong 125 um FIR laser line of methanol
Author(s): Li-Hong Xu
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Paper 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) —* (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.

Paper Details

Date Published: 1 January 1994
PDF: 1 pages
Proc. SPIE 2250, International Conference on Millimeter and Submillimeter Waves and Applications 1994, 22501H (1 January 1994); doi: 10.1117/12.2303070
Show Author Affiliations
Li-Hong Xu, Univ. of New Brunswick (Canada)


Published in SPIE Proceedings Vol. 2250:
International Conference on Millimeter and Submillimeter Waves and Applications 1994
Mohammed N. Afsar, Editor(s)

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