Experimental observation of the X-shaped near field spatio-temporal correlation of ultra-broadband twin beams
arXiv:1207.6934 · doi:10.1103/PhysRevLett.109.243901
Abstract
In this work we present the experimental observation of the non factorable near field spatio-temporal correlation of ultra-broadband twin beams generated by parametric down conversion (PDC), in an interferometric-type experiment using sum frequency generation, where both the temporal and spatial degrees of freedom of PDC light are controlled with very high resolution. The revealed X-structure of the correlation is in accordance with the predictions of the theory.
5 pages, 3 figures
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- Quantum-enhanced second harmonic generation beyond the photon pairs regime
- Measurement of coupled spatiotemporal coherence of parametric down-conversion under negative group velocity dispersion
- Space-time coupling in the up-conversion of broadband down-converted light
- Spatio-temporal entanglement of twin photons: an intuitive picture
- 800 nm pumped SPDC from chirped crystals