Effect of nonlinearity in the pass-through optics on femtosecond laser filament in air

An influence of pass-through optics on femtosecond laser pulse filamentation in ambient air is analyzed for the first time both experimentally and numerically. Propagation of high-power femtosecond laser pulse through solid optical elements introduces spatiotemporal phase modulation due to the Kerr...

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Bibliographic Details
Published in:arXiv.org 2014-09
Main Authors: Dergachev, Alexander A, Ionin, Andrey A, Kandidov, Valery P, Mokrousova, Daria V, Seleznev, Leonid V, Sinitsyn, Dmitry V, Sunchugasheva, Elena S, Shlenov, Svyatoslav A, Shustikova, Anna P
Format: Article
Language:English
Subjects:
Femtosecond pulses
Lasers
Optical components
Phase modulation
Online Access:Get full text
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Summary:An influence of pass-through optics on femtosecond laser pulse filamentation in ambient air is analyzed for the first time both experimentally and numerically. Propagation of high-power femtosecond laser pulse through solid optical elements introduces spatiotemporal phase modulation due to the Kerr effect. This modulation may have a strong ef-fect on the pulse filamentation in air. We demonstrated that the phase modulation obtained in the thin pass-through dielectric plate reduces the distance to the filament onset and increases the plasma channel length
ISSN:2331-8422
DOI:10.48550/arxiv.1409.4570