α-BBO Calcite Crystal Birefringence 3500nm Negative Crystal

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

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Product Specification


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

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
Thermal Expansion Coefficients(25°C~900°C)	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

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Year Established:

2017 
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Total Annual:

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Who We Are? Wuhan Star Optic Technology Co., Ltd as a registered Hi-Tech company has been focusing on manufacturing high precision of optical components ever since its foundation in 2017. It is located in Wuhan Optics Valley of China and was founded as a mast... Who We Are? Wuhan Star Optic Technology Co., Ltd as a registered Hi-Tech company has been focusing on manufacturing high precision of optical components ever since its foundation in 2017. It is located in Wuhan Optics Valley of China and was founded as a mast...

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Wuhan Star Optic Technology Co., Ltd
4th floor, building 9, Optics Valley New Dynamic, 5th Hi-Tech road, East lake Hi-Tech Zone, Wuhan, China
https://www.s-optic.com/

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