Twin-photon generation measured and modeled over 10 orders of magnitude of pump intensity | Journal of the European Optical Society-Rapid Publications

Recent advances and trends on lasers and nonlinear materials and sources for near-Infrared

Open Access

Figure A1

(top) Phase-mismatch angular frequency dependency of type II SPDC in a x-cut KTP. The blue curve corresponds to the calculation of Δk(ω) using Sellmeier’s equations from [1]. The dashed line corresponds to the interpolation using Δk ≈ α(ω − ω_s). (bottom). The quantity Δ²E_ω is the vacuum fluctuation spectral density.

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