Title

Tracking spectral shapes and temporal dynamics along a femtosecond filament

Document Type

Article

Publication Date

9-26-2011

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. © 2011 Optical Society of America.

Publication Source (Journal or Book title)

Optics Express

First Page

19495

Last Page

19507

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