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Opt Lett. 2004 Aug 1;29(15):1772-4.

Control of multiple filamentation in air.

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  • 1Department of Applied Mathematics, Tel Aviv University, Tel Aviv 69978, Israel. fibich@math.tau.ac.il

Abstract

In this Letter we provide what is believed to be the first experimental evidence of suppression of the number of filaments for high-intensity laser pulses propagating in air by beam astigmatism. We also show that the number, pattern, and spatial stability of the filaments can be controlled by varying the angle that a focusing lens makes with the axial direction of propagation. This new methodology can be useful for applications involving atmospheric propagation, such as remote sensing.

PMID:
15352365
[PubMed]
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