YVO4 crystals Specification or based on clients' requirements

Diameter:

max.25mm

Length:

max.30mm

Surface Quality:

20-10

Optical Deviation:

<1 arc min

Optical Axis Orientation:

+/-0.2°

Flatness:

< λ/8 @633nm

Wave Front:

< λ/8 @633nm

Coating:

According to custmer request

Physical Properties:

Transparency Range

400~5000nm

Crystal Symmetry

Zircon tetragonal, space group D4h

Crystal Cell

A=b=7.12°, c=6.29°

Density

4.22g/cm2

Hygroscopic Susceptibility

Non-hygroscopic

Mohs Hardness

5 glass like

Thermal Optical Coefficient

Dna/dT=8.5×10-6/K; dnc/dT=3.0×10-6/K

Thermal Conductivity Coefficient

||C: 5.23 w/m/k; ⊥C:5.10w/m/k

Crystal Class

Positive uniaxial with no=na=nb, ne=nc

Refractive Indices,Birefringence( Dn=ne-no) and Walk-Off Angle at 45 deg(ρ)

no=1.9929,ne=2.2154,Dn=0.2225,ρ=6.04°,at 630nm
no=1.9500,ne=2.1554,Dn=0.2054,ρ=5.72°,at 1300nm
no=1.9447,ne=2.1486,Dn=0.2039,ρ=5.69°,at 1550nm

Sellmeier Equation (λin μm)

no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2
ne2=4.5905+0.110534/(λ2-0.04813)-0.0122676λ2