Tubular plasma generation with a high-power hollow bessel beam
A high power, hollow Bessel beam (J5) is generated using an axicon and a phase plate in combination. The optical breakdown of a gas target and generation of a tubular plasma fiber with such a beam is realized. Hydrodynamic simulations of the hollow beam-plasma breakdown and heating are in reasonable agreement with interferometric measurements of the plasma time evolution.
Fan
J
Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA.
Parra
E
Alexeev
I
Kim
KY
Milchberg
HM
Margolin
LY
Pyatnitskii
LN