Generation of intense few-cycle laser pulses through filamentation - parameter dependence

Abstract

Intense few-cycle laser pulses as short as 5.1 fs are generated though self-filamentation in a noble gas atmosphere. We study the dependence of the laser pulse fidelity on the driving pulse profile and chirp as well as on the gas parameters, quantify their pointing stability and spatial quality.

Terawatt Post compression of high energy fs pulses using ionization: A way to overcome the conventional limitation in energy of few optical cycle pulses

“…However, the pulse output energy is limited by the critical power that is relatively low in high gas pressure required with this approach. Similar limit exist with filament based post compression [4].…”

Linear and Nonlinear Femtosecond Optics in Isotropic Media - Ionization-Free Filamentation

“…The numerical and analytical solutions of AE (1) and DE (2) are equal to the solutions of the equations AE (8) and DE (9) in Galilean coordinates with only one difference: in Laboratory frame the solutions translate in z-direction , while in Galilean frame the solutions stay in the centrum of the coordinate system. The basic theoretical studies governed laser pulse propagation have been performed in so called "local time" coordinates z = z; τ = t − z/v gr .…”

Versatile attosecond beamline in a two-foci configuration for simultaneous time-resolved measurements

“…III A and III B, the second scheme was adopted and 1.3-mJ pulses were sent through two filament cells filled with argon for spectral broadening. 30,31 The residual group-delay dispersion was compensated with broadband chirped mirrors. Pulses with energies of ∼350 μJ and a time duration down to ∼5.5 fs were achieved.…”