Fan, Parra, Alexeev, Kim, Milchberg, Margolin, Pyatnitskii
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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.
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