P.P. Sorokin, J.R. Lankard
IEEE JQE
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.
P.P. Sorokin, J.R. Lankard
IEEE JQE
P.P. Sorokin, J.H. Glownia
Astronomy and Astrophysics
D.S. Bethune, J.R. Lankard, et al.
The Journal of Chemical Physics
P.P. Sorokin, J.D. Axe, et al.
Journal of Applied Physics