α-Bbo α Barium Metaborate Optical Crystal 189nm-3500nm

Brand Name:ZCQ
Certification:RoHS
Model Number:Customized
Minimum Order Quantity:Negotiated
Delivery Time:3-4 weeks
Payment Terms:T/T
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Location: Beijing Beijing China
Address: Jidong Industraial Park, Qianbaihujian, Yangfang Town, Changping District, Beijing, China
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α-BBO α Barium metaborate crystal


Barium metaborate (α-BBO) crystal is an excellent birefringent material with excellent optical properties and excellent transmittance in both ultraviolet and mid infrared. α-BBO crystals have good internal quality, low absorption, and are widely used in high extinction ratio and deep ultraviolet laser systems due to their excellent ultraviolet transmittance. They are mainly processed into Glan polarization prisms, polarization beam splitters, compensators, and so on.

Application: Gran prism, polarization beam splitter, compensator, etc


Specifications:

Diameter:Max 50m
Length:Max 35mm
Surface Quality:better than 20/10 scratch/dig
Beam Deviation:< 3 arc min
Optical Axis Orientation:+/-0.2deg
Flatness:< λ/4 @632.8nm
Wavefront Distortion:< λ/2 @632.8nm
Coating:Coating upon Request

Properties:

Transmitting range189nm~3500nm
Density3.85g/cm3
Therm-Optic Coefficientsdno/dT=-9.3 x 10-6/ °C
dno/dT=-16.6x10-6/ °C
Optical HomogeneityΔn≈10-6/cm
Mohs Hardness4.5
Damage Threshold1GW/cm2 at 1064nm
500MW/cm2 at 532nm
Hygroscopic SusceptibilityLow
Thermal Expansion Coefficientsαa=4x10-6
(25 °C - 900 °C)αa=4x10-6
Linear Absorption Coefficientsa<0.005cm-1 from 300nm to 2300nm
Refractive Indices,
Birefringence(△n=ne-no)
and wal-off Angle at 45 °C(ρ)
ne=1.58462,no=1.65790,Dn=-0.073282;ρ=-4.9532° at 1064nm
ne=1.60206,no=1.67755,Dn=-0.075491;ρ=-5.0407° at 532nm
ne=1.67190,no=1.76171,Dn=-0.089805;ρ=-5.6926° at 266nm
Sellmeier equation(l in μm)no2=2.7471+0.01878/( λ2-0.01822)-0.01354 λ2
ne2=2.37153+0.01224/( λ2-0.01667)-0.01516 λ2

China α-Bbo α Barium Metaborate Optical Crystal 189nm-3500nm supplier

α-Bbo α Barium Metaborate Optical Crystal 189nm-3500nm

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