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α-BBO Calcite Crystal Birefringence 3500nm Negative Crystal
α-BBO Calcite Crystal Birefringence 3500nm Negative Crystal
Specifications
Brand Name :
STAR OPTIC
Model Number :
α-BBO
Certification :
RoHS, ISO9001
Place of Origin :
Wuhan, China
MOQ :
1pc
Price :
Negotiable
Payment Terms :
T/T, Western Union, Paypal
Supply Ability :
50000pcs/Month
Delivery Time :
Negotiable
Packaging Details :
Safe and dust-free packing
Description

Overview:

High temperature form BBO (α-BaB2O4) is an excellent negative uni-axial birefringent crystal. It has large birefringence coefficient and good transmission over a broad range, from 189nm to 3500nm. Unlike ß-BBO, α-BBO is not useful for NLO application due to the centric symmetry with its crystal structure.

α-BBO is excellent crystal in Glan Taylor, Glan Laser and Glan Thompson polarizer as well as walk-off beamsplitters, especially for high power and UV polarizers. This is due to their unique UV transparency, good mechanical properties and high damage threshold. Union Optic manufactures many Glan polarizers and beam displacers from high quality α-BBO crystals for UV and high power operations.

General Specifications Of α-BBO:

Dimension Tolerance ±0.1mm
Optical Axis Orientation ±0.5deg
Surface Quality 20/10 Scratch and Dig
Clear Aperture >90%
Surface Flatness <λ/4@633nm
Wavefront Distortion <λ/2@633nm
Parallelism <15 arc seconds
Beam Deviation <3 arc minutes
AR Coating Upon Request

Physical and Optical Properties of α-BBO:

Transparency Range 189~3500nm
Density 3.85g/cm3
Mohs Hardness 4.5 glass like
Optical Homogeneity Δn≈10-6/cm
Therm-Optic Coefficients dno/dT= - 9.3x10-6/°C
dne/dT= - 16.6x10-6/°C
Thermal Expansion Coefficients(25°C~900°C) aa=4x10-6/K
ac=36x10-6/K
Linear Absorption Coefficients a<0.005cm-1 from 300nm to 2300nm
Damage Threshold 1GW/cm2 at 1064nm, 200MW/cm2 at 532nm

Refractive Index

Birefringence (Δn=ne-no)

Walk-Off Angle at 45 deg(ρ)

 ne=1.53797, no=1.65790, Δn= - 0.11993, ρ= - 4.9532° at 1064nm
ne=1.55345, no=1.67755, Δn= - 0.12411, ρ= - 5.0407° at 532nm
ne=1.61145, no=1.76171, Δn= - 0.15026, ρ= - 5.6926° at 266nm
Sellmeier Equations (λ in um) no2=2.7471+0.01878/( λ2-0.01822)-0.01354λ2
ne2=2.37153+0.01224/(λ2-0.01667)-0.01516λ2

Product tags

spectra swarovski crystal

,

l norvaline crystal

,

calcium nitrate crystal
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α-BBO Calcite Crystal Birefringence 3500nm Negative Crystal

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Product Detail
Brand Name :
STAR OPTIC
Model Number :
α-BBO
Certification :
RoHS, ISO9001
Place of Origin :
Wuhan, China
MOQ :
1pc
Price :
Negotiable
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α-BBO Calcite Crystal Birefringence 3500nm Negative Crystal

Wuhan Star Optic Technology Co., Ltd

Verified Supplier
3 Years
wuhan
Since 2017
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Optical Glass Lenses, Optical Cylinder Lens, Spherical Glass Lens
Total Annual :
1000000-3000000
Employee Number :
10~50
Certification Level :
Verified Supplier
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