Plasma channels during filamentation of a femtosecond laser pulse with wavefront astigmatism in airстатья
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Дата последнего поиска статьи во внешних источниках: 19 апреля 2017 г.
Аннотация:We have demonstrated experimentally and numerically
the possibility of controlling parameters of plasma channels formed
during filamentation of a femtosecond laser pulse by introducing
astigmatism in the laser beam wavefront. It is found that weak
astigmatism increases the length of the plasma channel in comparison
with the case of aberration-free focusing and that strong astigmatism
can cause splitting of the plasma channel into two channels
located one after another on the filament axis.