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 comparing the experimentally measured yield of the third and fifth harmonics, with both an analytical and a full comprehensive numerical propagation model, we confirm the absolute and relative values of the reported HOKE indices.
© 2011 Optical Society of America
Original Manuscript: December 9, 2010
Revised Manuscript: January 21, 2011
Manuscript Accepted: January 23, 2011
Published: March 8, 2011
P. Béjot, E. Hertz, B. Lavorel, J. Kasparian, J.-P. Wolf, and O. Faucher, "From higher-order Kerr nonlinearities to quantitative modeling of third and fifth harmonic generation in argon," Opt. Lett. 36, 828-830 (2011)