Reception of relativistic intensity with use of the femtosecond radiations of Ti:Sapphire laser system with 0.2-TW peak power
V. V. Bolshakov, A. A. Vorobyev, R. V. Volkov, V. A. Knyazkov, A. В. Savelyev
Physical Faculty of the Moscow State University, Moscow, Russia
N. V. Eremin, A. A. Paskhalov
Research Institute for Nuclear Physics of the Moscow State University, Moscow, Russia
A. P. Shevelko, E. D. Kazakov
Lebedev Physical Institute of the Russian Academy of Science, Moscow, Russia
M. Yu. Romanovsky
Prokhorov General Physics Institute of the Russian Academy of Science, Moscow, Russia
In the presented work the results of experiments on diagnostics of parameters of laser radiation are given
for 0.2-TW laser system on the basis of a Ti:Sa crystal. It has been shown that the intensity is
up to 1018 W/cm2 . A duration of a laser impulse has made 50 fs, contrast on the nanosecond
time scale is 106, on the ps one — is not worse, than 105. For definition of size of
intensity of radiation, measurement of an average energy for hot electrons was spent. It has made (139±12) keV .
PACS: 52.38.-r
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