16 July 1986 Spectroscopic Applications Of Color Center Lasers
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Abstract
Color center lasers in alkali halide crystals span the entire spectral range from 0.8 to 4 micrometers.1,2 This spectral region encompasses the vibrational excitation range of many novel molecular species such as: free radicals, dimers and molecular ions; Rydberg transitions in atoms; and sub-band gap excitations in semiconductors. As a spectroscopic tool color center lasers offer powers from ten to several hundred milliwatts, good beam quality, and passive frequency stability on the order of a megahertz.3 In mode-locked operation they produce pulses in the 5 to 20 picosecond range. Color center lasers also have been operated in the pulsed mode with both flash lamp and pulsed laser pumping.4,5 The most powerful pulsed sources have produced several hundred kilowatts of peak power. At this level they are close to the threshold of being able to produce stimulated Raman scattering, and thus extend their tunability significantly farther into the infrared.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenneth R. German, Timothy VanSlambrouck, "Spectroscopic Applications Of Color Center Lasers", Proc. SPIE 0610, Scientific and Engineering Applications of Commercial Laser Devices, (16 July 1986); doi: 10.1117/12.956378; https://doi.org/10.1117/12.956378
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