title: Plasma filament investigation by transverse optical interferometry and terahertz scattering.
abstract: Transverse plasma distribution with 10(17) cm(-3) maximum electron density and 150 μm transverse size in a plasma filament formed in air by an intense femtosecond laser pulse was measured by means of optical interferometry. Two orders of magnitude decay of the electron density within 2 ns was obtained by combined use of the interferometry and newly proposed terahertz scattering techniques. Excellent agreement was obtained between the measured plasma density evolution and theoretical calculation.
authors: Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia. bosbor@ufp.appl.sci-nnov.ru
authors: Sergey
authors: S
authors: Bodrov
authors: Vladimir
authors: V
authors: Bukin
authors: Maxim
authors: M
authors: Tsarev
authors: Aleksey
authors: A
authors: Murzanev
authors: Sergey
authors: S
authors: Garnov
authors: Nickolay
authors: N
authors: Aleksandrov
authors: Andrey
authors: A
authors: Stepanov
mesh_terms: D003198:Computer Simulation; D005740:Gases / Q000737:chemistry* / Q000528:radiation effects*; D006358:Hot Temperature; D007368:Interferometry / Q000379:methods*; D007834:Lasers; D008956:Models, Chemical; D055053:Terahertz Radiation
chemical_list: D005740:Gases