Emission of photon pairs at discontinuities of nonlinearity in spontaneous parametric down-conversion
arXiv:0910.0418 · doi:10.1103/PhysRevA.80.043837
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.
11 pages, 8 figures
References in corpus (4)
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Cited by in corpus (6)
- Transverse coherence of photon pairs generated in spontaneous parametric down-conversion
- Spatial properties of entangled photon pairs generated in nonlinear layered structures
- Randomly poled crystals as a source of photon pairs
- Coincident count rates in absorbing dielectric media
- Photon-pair generation in nonlinear metal-dielectric 1D photonic structures
- The role of volume and surface spontaneous parametric down-conversion in the generation of photon pairs in layered media