INFLUENCE OF CASCADING PHENOMENA ON A TYPE-I 2ND-HARMONIC WAVE GENERATED BY AN INTENSE FEMTOSECOND PULSE - APPLICATION TO THE MEASUREMENT OF THE EFFECTIVE 2ND-ORDER COEFFICIENT
S. Cussatblanc et al., INFLUENCE OF CASCADING PHENOMENA ON A TYPE-I 2ND-HARMONIC WAVE GENERATED BY AN INTENSE FEMTOSECOND PULSE - APPLICATION TO THE MEASUREMENT OF THE EFFECTIVE 2ND-ORDER COEFFICIENT, Optics letters, 23(20), 1998, pp. 1585-1587
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 berate crystals by an intense femtosecond pulse. A noticea
ble evolution of spectral density is recorded for any value of phase m
ismatch. 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. (C) 1998 Opti
cal Society of America.