Self focusing in gas breakdown by laser pulses
M H Key; D A Preston; T P Donaldson; M H Key; Univ. Belfast, UK; D A Preston; Univ. Belfast, UK; T P Donaldson; Univ. Belfast, UK
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1970-08-01
Аннотация:
Direct experimental schlieren observation of self focused filaments is reported. Of two mechanisms shown to be possible the preferred one is due to cubic polarizability of excited atoms produced in the electron cascade due to the laser beam.
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