Observations of Dispersion Cancellation of Entangled Photon Pairs

Details Observations of Dispersion Cancellation of Entangled Photon Pairs Observations of Dispersion Cancellation of Entangled Photon Pairs

2011-03-02

arxiv.org/abs/1103.0532v1

Phys. Rev. Lett. 106, 063601 (2011)

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.106.063601

An experimental study of the dispersion cancellation occurring in frequency-entangled photon pairs is presented. The approach uses time-resolved up conversion of the pairs, which has temporal resolution at the fs level, and group-delay dispersion sensitivity of $\approx \ 20 \, \mathrm{fs}^2$ under experimental conditions. The cancellation is demonstrated with dispersion stronger than $\pm 10^3 \, \mathrm{fs}^2$ in the signal $(-)$ and idler $(+)$ modes. The observations represent the generation, compression, and characterization of ultrashort biphotons with correlation width as small as 6.8 times the degenerate optical period.

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