254 citations · 796 across the 15 of their papers we have counts for
4 papers · 1 filter
From higher-order Kerr nonlinearities to quantitative modeling of 3rd and 5th harmonic generation in argon
P. Béjot, E. Hertz, B. Lavorel +3
The recent measurement of negative higher-order Kerr effect (HOKE) terms in gases has given rise to a controversial debate, fed by its impact on short laser pulse propagation. By c…
Higher-order Kerr terms allow ionization-free filamentation in gases
P. Béjot, J. Kasparian, S. Henin +6
We show that higher-order nonlinear indices (, , , ) provide the main defocusing contribution to self-channeling of ultrashort laser pulses in air and Argon…
Spectral dependence of purely-Kerr driven filamentation in air and argon
W. Ettoumi, P. Béjot, Y. Petit +6
Based on numerical simulations, we show that higher-order nonlinear indices (up to and , respectively) of air and argon have a dominant contribution to both focusing…
On negative higher-order Kerr effect and filamentation
V. Loriot, P. Béjot, W. Ettoumi +7
As a contribution to the ongoing controversy about the role of higher-order Kerr effect (HOKE) in laser filamentation, we first provide thorough details about the protocol that has…