title: Tracking spectral shapes and temporal dynamics along a femtosecond filament.
abstract: The spectral evolution of a high-intensity light channel formed by filamentation is investigated in a detailed experimental study. We also track the spatio-temporal dynamics by high-order harmonic generation along the filament. Both the spectral and temporal diagnostics are performed as a function of propagation distance, by extracting the light pulses directly from the hot filament core into vacuum via pinholes that terminate the nonlinear propagation. We compare the measured spectral shapes to simulations and analyze numerically the temporal dynamics inside the filament.
authors: Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, D-30167 Hannover, Germany. schulz@iqo.uni-hannover.de
authors: Emilia
authors: E
authors: Schulz
authors: Daniel S
authors: DS
authors: Steingrube
authors: Thomas
authors: T
authors: Binhammer
authors: Mette B
authors: MB
authors: Gaarde
authors: Arnaud
authors: A
authors: Couairon
authors: Uwe
authors: U
authors: Morgner
authors: Milutin
authors: M
authors: Kovačev
mesh_terms: D003198:Computer Simulation; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted