Description: High temperature phase of -BBO Crystal (BaB2O4) is one of the excellent birefringent crystals. It is characterized by large birefringent coefficient and wide transmission window ranged f..
Description:
Transparency range
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189-3500nm
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Density
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3.85g/cm3
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Thermo-optic coefficients
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dno / dT = -9.3 X 10-6/℃, dne / dT = -16.6.3 X 10-6 /℃
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Optical homogeneity
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Δn≈10-6/cm
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Damage threshold
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1 GW/cm2@1064nm; 500 MW/cm2@532nm
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Hygroscopic susceptibility
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Low
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Thermal expansion coefficients(25ºC-900ºC)
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aa = 4 X 10-6 / K, ac = 4 X 10-6 / K
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Linear absorption coefficients
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α<0.005cm-1 from 300nm to 2300nm
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Refractive indices, birefringence
(Δn=ne-no) and walk-off angle at 45º
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ne=1.58462, no=1.65790,Δn=-0.073282; ρ=-4.9532º @1064nm
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ne=1.60206,no=1.67755,Δn=-0.075491; ρ=-5.0407º @ 532nm
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ne=1.67190,no=1.76171,Δn=-0.089805; ρ=-5.6926º @ 266nm
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Diameter
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40~50mm
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Length
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25~35mm
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Surface Quality
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20/10 Scratch/Dig
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Beam deviation
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< 3 arc min
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Optical axis orientation
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+/-0.5º
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Flatness
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Better than λ/8 @633nm
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Transmission wave front distortion
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<λ/4 @633nm
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Coating
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upon customer's request
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