Title :
Plasma channels characteristics dependence on tightly focused femtosecond laser radiation parameters
Author :
Mikheev, P.M. ; Gordienko, V.M. ; Makarov, I.A. ; Shashkov, A.A. ; Syrtsov, V.S.
Author_Institution :
Phys. Fac. & Int. Laser Center, Moscow State Univ.
Abstract :
Tight focusing of femtosecond laser radiation with microjoule pulse energy in non-linear crystal volume (intensity of the order of 10 W/cm2) causes self-focusing, multiphoton ionization of the matter, plasma channel formation, electrons heating, and subsequent micromodification of the structure. The processes threshold, behavior and efficiency strongly depend on such laser pulse parameters as pulse duration, energy and radiation wavelength
Keywords :
high-speed optical techniques; laser beams; optical harmonic generation; optical self-focusing; plasma diagnostics; plasma light propagation; electrons heating; laser pulse parameters; matter multiphoton ionization; nonlinear crystal; plasma channel formation; plasma channels characteristics; pulse duration; pulse energy; radiation wavelength; second harmonic generation; self-focusing; structure micromodification; tightly focused femtosecond laser radiation parameters; Electrons; Focusing; Laser modes; Laser theory; Optical pulses; Plasma density; Plasma measurements; Plasma properties; Plasma temperature; Plasma waves;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Conference_Location :
Munich
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568426
