Parametric downconversion with optimized spectral properties in nonlinear photonic crystals
arXiv:0710.3745 · doi:10.1103/PhysRevA.76.043829
Abstract
We study the joint spectral properties of photon pairs generated by spontaneous parametric down-conversion in a one-dimensional nonlinear photonic crystal in a collinear, degenerate, type-II geometry. We show that the photonic crystal properties may be exploited to compensate for material dispersion and obtain photon pairs that are nearly factorable, in principle, for arbitrary materials and spectral regions, limited by the ability to fabricate the nonlinear crystal with the required periodic variation in the refractive indices for the ordinary and extraordinary waves.
9 pages, 6 figures
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- Chirped quasi-phase-matching with Gauss sums for production of biphotons
- Limits of heralded single photon sources based on parametric photon pair generation