Research Article

Mid-infrared Spectrally Pure Single-Photon States Generation from 22 Nonlinear Optical Crystals

Table 3

Three kinds of GVM conditions for 4 biaxial BPM crystals with light propagating in the plane. is the azimuth angle. is obtained from SNLO [57].

Name (purity0.97) (purity0.97) (purity0.82)

LIS  = 1457 nm,  = 2914 nm = 2473 nm,  = 4946 nm = 1901 nm,  = 3802 nm
 = 56.7°,  = 6.01 pm/V = 56.7°,  = 5.74 pm/V = 49.5°,  = 6.05 pm/V

LISe  = 1912 nm,  = 3824 nm = 3205 nm,  = 6410 nm = 2491 nm,  = 4982 nm
 = 45.8°,  = 9.65 pm/V = 45.6°,  = 9.31 pm/V = 40.7°,  = 9.19 pm/V

LGS  = 1347 nm,  = 2696 nm = 2282 nm,  = 4564 nm = 1767 nm,  = 3534 nm
 = 55.5°,  = 5.24 pm/V = 55.1°,  = 5.02 pm/V = 49.7°,  = 5.19 pm/V

LGSe  = 1641 nm,  = 3282 nm = 2729 nm,  = 5258 nm = 2129 nm,  = 4258 nm
 = 47.8°,  = 8.37 pm/V = 47.5°,  = 8.06 pm/V = 43.3°,  = 8.38 pm/V