Coherent amplification of light in ruby at 105° K
Leontovich A.M., Mozharovskii A.M.
We investigated coherent amplification of light in ruby at 105 °K. At an average incident-pulse duration 36 psec, the average duration of the amplified pulses was 18 psec. The minimum duration of the amplified pulses, 14 psec, is smaller than the reciprocal width of the ruby luminescence line (approximately 20 psec).