Spatiotemporal three-dimensional mapping of nonlinear X waves.
The spatiotemporal intensity profile of a 100-fs wave packet at the output of a X2 crystal, tuned for mismatched second-harmonic generation, is probed via sum-frequency generation with a compressed, 20-fs pulse, revealing the appearance of an X-type wave shape.
INFM and Department of Chemical, Physical and Mathematical Sciences, University of Insubria, Via Valleggio 11, 22100 Como, Italy.
J
J
Trull
O
O
Jedrkiewicz
P
P
Di Trapani
A
A
Matijosius
A
A
Varanavicius
G
G
Valiulis
R
R
Danielius
E
E
Kucinskas
A
A
Piskarskas
S
S
Trillo