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Journal of Applied Physics
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.
M.J. Stevenson, W. Reuter, et al.
Journal of Applied Physics
R.S. Title, P.P. Sorokin, et al.
Physical Review
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