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Proceedings Paper

Improved reproducibility of conical emission from glass under axicon focusing of femtosecond laser pulse
Author(s): S. V. Chekalin; O. G. Kosareva; A. V. Grigor'evskii; V. P. Kandidov
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Paper Abstract

The supercontinuum conical emission of a 50-fs laser pulse focused into a Κ 108 glass is studied experimentally and numerically. It is found that, as the pulse energy was increased from 2 to 30 uj, the continuous picture of conical emission decomposed into speckles upon focusing with a lens and split into narrow rings upon focusing with an axicon. Preserving of distinct interference picture under more than 1000 shots exposure evidences in favor of much more stable positioning of microfilament in the case of axicon.

Paper Details

Date Published: 27 July 2007
PDF: 6 pages
Proc. SPIE 6733, International Conference on Lasers, Applications, and Technologies 2007: Environmental Monitoring and Ecological Applications; Optical Sensors in Biological, Chemical, and Engineering Technologies; and Femtosecond Laser Pulse Filamentation, 67332I (27 July 2007); doi: 10.1117/12.753161
Show Author Affiliations
S. V. Chekalin, Institute of Spectroscopy (Russia)
O. G. Kosareva, M.V. Lomonosov Moscow State Univ. (Russia)
A. V. Grigor'evskii, M.V. Lomonosov Moscow State Univ. (Russia)
V. P. Kandidov, M.V. Lomonosov Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 6733:
International Conference on Lasers, Applications, and Technologies 2007: Environmental Monitoring and Ecological Applications; Optical Sensors in Biological, Chemical, and Engineering Technologies; and Femtosecond Laser Pulse Filamentation

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