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arXiv · 0910.0418

Emission of photon pairs at discontinuities of nonlinearity in spontaneous parametric down-conversion

Jan Perina Jr·Antonin Luks·Ondrej Haderka
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Abstract

In order to fulfil the continuity requirements for electric- and magnetic-field amplitudes at discontinuities of chi2 nonlinearity additional photon pairs have to be emitted in the area of discontinuity. Generalized two-photon spectral amplitudes can be used to describe properties of photon pairs generated in this process that we call surface spontaneous parametric down-conversion. The spectral structure of such photon pairs is similar to that derived for photon pairs generated in the volume. Surface and volume contributions to spontaneous down-conversion can be comparable as an example of nonlinear layered structures shows.

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Jan Perina Jr, Antonin Luks, Ondrej Haderka. 2009-10-02. Emission of photon pairs at discontinuities of nonlinearity in spontaneous parametric down-conversion. https://doi.org/10.1103/physreva.80.043837

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