10 August 1994 New elements for laser optics: color centers modified by powerful laser radiation
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Proceedings Volume 2096, Lasers in Optical Systems and Devices; (1994) https://doi.org/10.1117/12.183125
Event: Laser Optics, 1993, St. Petersburg, Russian Federation
Results of experimental studies of bleaching of F-2 color centers (CC) in LiF crystals are presented. Bleaching of these centers was shown to take place in two-photon absorption from the excited state. The effect of bleaching on the emission of neodymium lasers with LiF:F-2-passive Q-switches was studied. Phenomenon of spontaneous narrowing of emission spectrum is due to arising in LiF:F-2 crystal of absorption grating (caused by destruction of F-2 CC), that has spectral-selective properties. Polarization characteristics of nonlinear transmission of YAG:Cr4+ crystal a model is developed, in which the absorption on the wavelength of 1.06 micrometers occurs due to three linear dipoles oriented along the crystallographic axes.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N. N. Il'ichev, "New elements for laser optics: color centers modified by powerful laser radiation", Proc. SPIE 2096, Lasers in Optical Systems and Devices, (10 August 1994); doi: 10.1117/12.183125; https://doi.org/10.1117/12.183125


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