Surface spontaneous parametric down-conversion

Abstract

Surface spontaneous parametric down-conversion is predicted as a consequence of continuity requirements for electric- and magnetic-field amplitudes at a discontinuity of chi2 nonlinearity. A generalization of the usual two-photon spectral amplitude is suggested to describe this effect. Examples of nonlinear layered structures and periodically-poled nonlinear crystals show that surface contributions to spontaneous down-conversion can be important.

4 pages, 3 figures

References in corpus (1)

• Properties of entangled photon pairs generated in one-dimensional nonlinear photonic-band-gap structures

Cited by in corpus (7)

• Transverse coherence of photon pairs generated in spontaneous parametric down-conversion
• Emission of photon pairs at discontinuities of nonlinearity 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