This article is cited in 37 papers

Interaction of laser radiation with matter. Laser plasma

Formation of extended plasma channels in a condensed medium upon axicon focusing of a femtosecond laser pulse

O. G. Kosareva, A. V. Grigor'evskii, V. P. Kandidov

Lomonosov Moscow State University, Faculty of Physics

Abstract: The formation of plasma channels of a femtosecond laser pulse in the bulk of fused silica is studied by numerical simulation, and the advantages of using a conical lens (axicon) over conventional parabolic lenses are shown. It is found that the length of the plasma channel formed with the help of an axicon exceeds the length of the channel formed upon lens focusing.

PACS: 52.58.-r, 42.65.Re, 42.79.Bh

Received: 29.09.2005

 English version: Quantum Electronics, 2005, 35:11, 1013–1014

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