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Direct Interferometric Measurements of the Acoustic Waves from Femtosecond Filaments

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Abstract

Interferometric measurements of submicrosecond gas density dynamics following passage of an intense ultrashort pulse are presented for single- and multi-lobed beams at 10 Hz and 1 kHz. Results are in excellent agreement with hydrodynamic simulations.

© 2014 Optical Society of America

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