Multiple Photon Pumping of Molecular Lasers: Frequency Tunable and Far IR Lasers.
Interim rept. 1 Feb 78-31 Jan 79,
ILLINOIS UNIV AT URBANA-CHAMPAIGN ELECTRO-PHYSICS LAB
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This annual report describes research on two-photon pumping of molecular lasers operating on hot band transitions of the molecules and the associated nonlinear effects Raman and hyper-Raman that contribute to the gain spectrum of the molecular system. Accessing the hot bands of a molecule results in more lasing transitions that would otherwise be observed, and modifies the characteristics of the gain spectrum, i.e., the saturation, AC Stark shifts and width. Specific experiments described are infrared-microwave pumping of NH3, infrared-infrared pumping on NH3, and hot band lasing in NH3. Ammonia has been chosen for study since it has both a rich known, so that absorption and laser assignments can readily be made. Author
- Lasers and Masers