Figure 4 | Scientific Reports

Figure 4

From: Crystal growth and optical characteristics of beryllium-free polyphosphate, KLa(PO3)4, a possible deep-ultraviolet nonlinear optical crystal

Figure 4

(a) The transmittance spectrum of the KLa(PO3)4 crystal in the VUV region. The inset presents the measured crystal and the transmittance spectra in the UV-vis-NIR and mid far-infrared regions. (b) Phase-matching data points with respect to particle size for the KLa(PO3)4 polycrystalline powder in addition to KDP as a reference at 1064 nm. The drawn curves serve to guide the eye and do not represent a fit to the data. The inset presents the second-harmonic generation of pulsed Nd:YAG laser radiation on the as-grown KLa(PO3)4 crystal.

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