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Filament conductivity enhancement through nonlinear beam interaction
Author(s) -
Danielle Reyes,
Jessica Peña,
Wiktor Walasik,
Natalia M. Litchinitser,
Shermineh Rostami Fairchild,
Martin Richardson
Publication year - 2020
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.401278
Subject(s) - protein filament , femtosecond , plasma , beam (structure) , optics , conductivity , materials science , atomic physics , laser , physics , nuclear physics , quantum mechanics , composite material
Laser filament applications relying on filament plasma conductivity are limited by their low electron densities and corresponding short lifetimes. Filament plasma formation, an intensity-dependent process, is limited by the clamping of the filament core intensity. Consequently, increasing initial beam energy results in the breakup of the beam into multiple filaments rather than the enhancement of the electron density and conductivity of an individual filament. However, we demonstrate here the augmentation of the filament plasma density up to three times the typical value through the energy exchange between two co-propagating femtosecond beams with total powers between 1.7 and 2.2 P fil .

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