YVO4

Yttrium Vanadate (YVO4) crystals have good mechanical and physical properties and are ideal for optical polarizing components because of their wide transparency range and large birefringence. They are an excellent synthetic substitute for Calcite (CaCO3) and rutile (TiO2) in many applications including fiber optic isolators and circulators, beam displacers, Glan polarizers and other polarizing optics.

Basic Properties of YVO4 crystal
Transparency Range	400~5000nm
Density	4.22 g/cm 2
Hygroscopic Susceptibility	NA
Mohs Hardness	5
Thermal Expansion Coefficients（/CO）	11.4X10-6 （C ）
	4.4X10-6 （A ）
Thermal Conducivity	||C: 5.23 w/m/k; ⊥C:5.10w/m/k
Refractive Indices	No=2.01768，Ne=2.25081，532nm No=1.95714，Ne=2.16498，1064nm
Sellmeier Equation (λ in μm)	n o 2 =3.77834+0.069736/(l2 -0.04724)-0.0108133l2 n e 2 =4.5909+0.110534/(l2 -0.04813)-0.0122676 l2

Capabilities
Material	YVO4 Crystal	Transparency Curve
Size	1mm-25mm
Surface Quality	10-5
Optical Axis Orientation	6 arc min
Parallelism	<10 ace sec
Flatness	λ/4@633nm
Clear Aperture	>90%
Coating	AR coating
Mount	Upon Customer's Specification