擎轩科技钒酸钇光学高精度基底 QXYV

钒酸钇(YVO4)是一种正性单轴晶体，主要用于偏振光学元件。它具有较大的双折射和较宽的透光范围，该范围一直延伸到红外区域，因此它是红外偏振器的理想选择。

Yttrium Orthovanadate Specifications
Index of Refraction at Nd:YAG (1.064 µm)a	no = 1.959 ne = 2.166
Abbe Number (Vd), Extraordinary	18.10
Abbe Number (Vd), Ordinary	20.29
Transmission Range	488 nm - 3.4 µm
Density	4.23 g/cm3
Knoop Hardness	480 kg/mm2
Young's Modulus	133 GPa
Coefficient of Thermal Expansion	11 x 10-6 /°C (Parallel) 4.4 x 10-6 /°C (Perpendicular)
Heat Capacity	0.51 J/(g*K)
Melting Point	1750 - 1940 °C
Change in Index of Refraction with Temperature (@ 632.8 nm)	2.9 x 10-6 /°C (Parallel) 8.5 x 10-6 /°C (Perpendicular)