Fig. 4: Spectroscopic and optical property measurements of [Cs2NaCd2Cl]Cl2(MoO4)2.
From: Heterocationic strategy to design a nonlinear optical crystal with a polar anti-perovskite structure
a Photograph of a [Cs2NaCd2Cl]Cl2(MoO4)2 single-crystal sample. b Transmission spectrum of the [Cs2NaCd2Cl]Cl2(MoO4)2 single crystal, from near infrared to ultraviolet range. c Comparison of the transparency windows of molybdates (red) and other oxide-based NLO materials, including molybdates (orange), niobate (blue), titanates (cyan), borates(purple). Powder SHG measurements at (d) 1064 nm and (e) 2090 nm. The SHG intensity is plotted in arbitrary units (arb. units) to facilitate a direct comparison of the relative intensity. f Demonstration of [Cs2NaCd2Cl]Cl2(MoO4)2 birefringence and cross-polarized images showing interference colors. g Calculated refractive index components of [Cs2NaCd2Cl]Cl2(MoO4)2 at 1064 nm, showing its birefringence. h Performance benchmarking of [Cs2NaCd2Cl]Cl2(MoO4)2 (red) compared to KTP (green) and KDP (blue).
