P.P. Sorokin, M.J. Stevenson, et al.
Physical Review
Stimulated emission in nineteen np-ns and np-(n-2)d transitions in K vapour was observed by optically pumping the np states with the second harmonic of a pulsed dye laser. The observed output wavelengths range from about 10 mu m to above 100 mu m. Wavelength measurements of the np-(n-2)d emissions can provide accurate unambiguous determinations of d-level energies. For the cases n=7 and n=8 stimulated Raman emission was observed at small detunings of the pump beam from the np resonance lines.
P.P. Sorokin, M.J. Stevenson, et al.
Physical Review
D.J. Jackson, J.J. Wynne
Physical Review Letters
P.F. Moulton, W. Künzel, et al.
Applied Physics B Photophysics and Laser Chemistry
J.J. Wynne
Physical Review Letters