27 July 2007 Cumulative refractive index modification and waveguide formation by femtosecond filaments
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The theoretical and experimental studies of the cumulative effects on refractive index modification dynamics during filamentation from femtosecond light pulses in transparent media are presented. Residual changes of the refractive index were shown as developing both in forward and backward directions forming prolonged tracks of modified index profiles (waveguides) during repetitious laser shots.
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E. Gaižauskas, E. Gaižauskas, V. Kudriašov, V. Kudriašov, V. Sirutkaitis, V. Sirutkaitis, } "Cumulative refractive index modification and waveguide formation by femtosecond filaments", Proc. SPIE 6733, International Conference on Lasers, Applications, and Technologies 2007: Environmental Monitoring and Ecological Applications; Optical Sensors in Biological, Chemical, and Engineering Technologies; and Femtosecond Laser Pulse Filamentation, 67332G (27 July 2007); doi: 10.1117/12.753152; https://doi.org/10.1117/12.753152

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