Abstract
The third-order nonlinearity x (3) and other optical properties of LiF, CaF2, fused silica, and free standing polymeric thin film are studied using a diagnostic technique based on the third-harmonic generation of tightly-focused femtosecond Cr:forsterite laser radiation. Time-resolved measurements of the plasma evolution in the bulk of a fused silica sample are performed by a pump-probe technique using the fundamental and third-harmonic radiation as a probe. With the use of the pump-probe technique, two types of the relaxation processes are registered.
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Talk presented at the oral issue of Journal of Russian Laser Research in honor of Prof. Anatoly S. Chirkin on the occasion of his 70th birthday, held at the M. V. Lomonosov Moscow State University on May 15, 2009.
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Gordienko, V.M., Khodakovskij, N.G., Mikheev, P.M. et al. THG in dielectrics using low-energy tightly-focused ir femtosecond laser: third-order nonlinearity measurements and the evolution of laser-induced plasma. J Russ Laser Res 30, 599–608 (2009). https://doi.org/10.1007/s10946-009-9118-6
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DOI: https://doi.org/10.1007/s10946-009-9118-6