Research Article
Mid-infrared Spectrally Pure Single-Photon States Generation from 22 Nonlinear Optical Crystals
Table 4
Three kinds of GVM conditions for 8 QPM crystals. is the GVM wavelength for the pump (signal, idler). is the poling period, and is the effective nonlinear coefficient. The Sellmeier equations are obtained from refs. [34, 35]. Most of the values can be obtained from the SNLO software package, developed by AS-Photonics, LLC [57]. The values for and are not available from SNLO, so we have calculated them using the method in the appendix of ref. [52] and considering Miller’s rule [58]. The value for PMN-0.38PT is unknown.
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