A.J. Schell-Sorokin, D.S. Bethune, et al.
Journal of Physical Chemistry
Infrared laser action in helium-buffered Sr vapor, resulting from the combined effects of optical pumping and inelastic collisions, has been observed at 2.923, 2.692, and 2.602 μ. A dye laser was used for pumping. © 1969 The American Physical Society.
A.J. Schell-Sorokin, D.S. Bethune, et al.
Journal of Physical Chemistry
R.T. Hodgson, P.P. Sorokin, et al.
Physical Review Letters
J.H. Glownia, J. Misewich, et al.
Journal of the Optical Society of America B: Optical Physics
P.P. Sorokin, J.R. Lankard
IEEE JQE