Laser-pumped molecular lasers - Part II: Submillimeter laser experiments
- 1 September 1979
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 15 (9), 865-869
- https://doi.org/10.1109/jqe.1979.1070153
Abstract
We report the first experimental determination of the gain spectrum of a laser-pumped submillimeter laser amplifier. Single-mode pump and submillimeter oscillators were used to determine the gain as a function of submillimeter laser frequency, pump intensity, relative polarization, and molecular gas pressure. The 385 μm transition in D2O and the 496 μm transition in CH3F, both pumped by a CO2laser, were investigated. The use of single-mode lasers allows a direct comparison with theory. Good agreement is obtained with our recent theory which takes into account two photon contributions to the gain as well as space orientation (M-level) molecular degeneracy.Keywords
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