title: Influence of cascading phenomena on a type I second-harmonic wave generated by an intense femtosecond pulse: application to the measurement of the effective second-order coefficient.
abstract: We have studied the influence of cascaded second-order effects on the spectral density of a second-harmonic pulse generated in thin KDP and beta-barium borate crystals by an intense femtosecond pulse. A noticeable evolution of spectral density is recorded for any value of phase mismatch. This evolution is in good agreement with the solution of the nonlinear propagation equation and allows a simple direct measurement of the effective susceptibility of the studied crystals.
authors: S
authors: S
authors: Cussat-Blanc
authors: R
authors: R
authors: Maleck Rassoul
authors: A
authors: A
authors: Ivanov
authors: E
authors: E
authors: Freysz
authors: A
authors: A
authors: Ducasse