Publication date
December 2015
DOI Publisher
The Authors. Published by Elsevier B.V.Abstract
AbstractElectron density dynamics in air, nitrogen and argon femtosecond filament plasma channel is studied under different pressure up to hundreds of picoseconds after ionization by transverse interferometry method. It is revealed that initial electron density in nitrogen plasma rises significantly under the pressure over 4 atmospheres. Optical refractive index anisotropy, which precedes and accompanies ionization, related with intense pulse propagation is revealed
Add to ORKG