Plasma channels under filamentation of infrared and ultraviolet double femtosecond laser pulses
arXiv:1309.3105 · doi:10.1088/1612-2011/11/1/016002
Abstract
An influence of plasma channel created by a filament of focused UV or IR femtosecond laser pulse (λ=248 nm or 740 nm) on characteristics of other plasma channel formed by a femtosecond pulse at the same wavelength following the first one with varied nanosecond time delay was experimentally studied. A dependence of optical transparency of the first channel and plasma density of the second channel on the time delay was demonstrated to be quite different for such a double UV and IR femtosecond pulses.
5 pages, 3 figures