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Phys. Rev. A 64, 041803 (2001) [4 pages]

Collinear two-photon state with spectral properties of type-I and polarization properties of type-II spontaneous parametric down-conversion: Preparation and testing

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A. V. Burlakov, M. V. Chekhova, O. A. Karabutova, and S. P. Kulik
Department of Physics, Moscow State University, 119899 Moscow, Russia

Rapid Communication Received 28 February 2001; published 17 September 2001

Two beams of collinear type-I biphotons generated via spontaneous parametric down-conversion (SPDC) from coherent pump beams are transformed without a loss into a state of correlated photons with orthogonal (in the general case, elliptical) polarizations. This alternative state manifests remarkable properties: while having the spectrum of type-I SPDC, it has polarization properties similar to type-II SPDC. To test the state, we use the anticorrelation effect (“anticorrelation dip”).


©2001 The American Physical Society

URL: http://link.aps.org/abstract/PRA/v64/e041803
DOI: 10.1103/PhysRevA.64.041803
PACS: 42.50.Dv, 03.67.-a

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