Detection of the ultranarrow temporal correlation of twin beams via sum-frequency generation

Abstract

We demonstrate the ultranarrow temporal correlation (6 fs full width half maximum) of twin beams generated by parametric down-conversion, by using the inverse process of sum-frequency generation. The result relies on an achromatic imaging of a huge bandwith of twin beams and on a careful control of their spatial degrees of freedom. The detrimental effects of spatial filtering and of imperfect imaging are shown toghether with the theoretical model used to describe the results.

References in corpus (3)

• Nonlinear interactions with an ultrahigh flux of broadband entangled photons
• Time-Resolved Upconversion of Entangled Photon Pairs
• Observation of ultra-broadband, beamlike parametric downconversion

Cited by in corpus (9)

• Dimensionality of the spatio-temporal entanglement of PDC photon pairs
• Coherence properties of high-gain twin beams generated in pump-depletion regime
• Measurement and shaping of biphoton spectral wavefunctions
• Experimental observation of the X-shaped near field spatio-temporal correlation of ultra-broadband twin beams
• Critical behaviour of coherence and correlation of counterpropagating twin beams
• Study of broadband multimode light via non-phase-matched sum frequency generation
• Where are photons created in parametric down conversion? On the control of the spatio-temporal properties of biphoton states
• Spatio-temporal entanglement of twin photons: an intuitive picture
• Space-time coupling in the up-conversion of broadband down-converted light