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Calcite α-BBO Crystal YVO4 Crysta

Birefringent Crystal

YVO4 Crysta

Yttrium Vanadate (YVO4) crystals are positive uniaxial crystals grown using the Czochralski method. They have good mechanical and physical properties and are ideal for optical polarizing components be..

YVO4 Crysta

产品说明

Yttrium Vanadate (YVO4) crystals are positive uniaxial crystals grown using the Czochralski method. They 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 displacer, Glan polarizer and other polarizing optics. Specifications:

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

 

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