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arXiv · 1203.3661

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

O. Jedrkiewicz·J. -L. Blanchet·E. Brambilla·P. Di Trapani·A. Gatti
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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.

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O. Jedrkiewicz, J. -L. Blanchet, E. Brambilla, P. Di Trapani, A. Gatti. 2012-03-16. Detection of the ultranarrow temporal correlation of twin beams via sum-frequency generation. https://doi.org/10.1103/physrevlett.108.253904

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