Inhibition of multi-filamentation of high-power laser beams

We experimentally demonstrate the control and complete elimination of multi-filamentation in condensed matter by varying the focusing geometry. In particular, increasing the input beam power enables the extension of the filament length without generating multi-filaments up to 1400 times the critical...

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Bibliographic Details
Published in:Optics letters 2016-09, Vol.41 (17), p.4064-4067
Main Authors: Grynko, Rostislav I, Weerawarne, Darshana L, Gao, Xiaohui, Liang, Houkun, Meyer, Henry J, Hong, Kyung-Han, Gaeta, Alexander L, Shim, Bonggu
Format: Article
Language:English
Subjects:
Beams (radiation)
Condensed matter
Filaments
Focusing
Fused silica
Laser beams
Solitary waves
Wavelengths
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Summary:We experimentally demonstrate the control and complete elimination of multi-filamentation in condensed matter by varying the focusing geometry. In particular, increasing the input beam power enables the extension of the filament length without generating multi-filaments up to 1400 times the critical power in fused silica at an 800 nm wavelength. Furthermore, the generated single filament exhibits spatial solitary wave behavior.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.41.004064