Femtosecond filament array generated in air View Full Text


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Article Info

DATE

2015-10-22

AUTHORS

Acner Camino, Tingting Xi, Zuoqiang Hao, Jingquan Lin

ABSTRACT

Patterning multiple filamentation of femtosecond pulses in air is studied using a microlens array for modulation of the spatial profile and a single lens for power concentration. We generate a stable array of filaments containing a maximum of five hotspots per mm2 from a modest 68-GW input power. The evolution of the pattern along the axis of propagation as well as the means to control the inter-filament spacing is discussed. It is also shown in numerical simulations that besides the filamentation in the proximities of the focus, there is a region of early ionization around the central hotspots in the beam profile and a revival afterwards, caused by the spatial distribution of the laser energy. More... »

PAGES

363-368

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00340-015-6238-2

DOI

http://dx.doi.org/10.1007/s00340-015-6238-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1050398783


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