Experimental observation of a skewed X-type spatiotemporal correlation of ultrabroadband twin beams.
This work presents the experimental observation of the nonfactorable near-field spatiotemporal correlation of ultrabroadband twin beams generated by parametric down-conversion, in an interferometric-type experiment using sum frequency generation, where both the temporal and the spatial degrees of freedom of parametric down-conversion light are controlled with high resolution. The revealed correlation is skewed in space-time in accordance with the X structure predicted by the theory.
CNR, Istituto di Fotonica e Nanotecnologie, Piazza Leonardo da Vinci 32 Milano, Italy.
O
O
Jedrkiewicz
A
A
Gatti
E
E
Brambilla
P
P
Di Trapani