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1-J white-light continuum from 100-TW laser pulses

2011; American Physical Society; Volume: 83; Issue: 1 Linguagem: Inglês

10.1103/physreva.83.013805

1538-4446

Yannick Petit, S. Henin, Walter M. Nakaema, Pierre Béjot, A. Jochmann, Stephan Kraft, Stefan Bock, U. Schramm, K. Stelmaszczyk, Philipp Rohwetter, Jérôme Kasparian, R. Sauerbrey, L. Wöste, Jean‐Pierre Wolf,

Photonic Crystal and Fiber Optics

We experimentally measured the supercontinuum generation using 3-J, 30-fs laser pulses and measured white-light generation at the level of 1 J. Such high energy is allowed by a strong contribution to the continuum by the photon bath, as compared to the self-guided filaments. This contribution due to the recently observed congestion of the filament number density in the beam profile at very high intensity also results in a wider broadening for positively chirped pulses rather than for negatively chirped ones, similar to broadening in hollow-core fibers.