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High Birefringence Laser Crystals 0.5deg Negative Uniaxial Crystal

Categories Laser Crystals
Brand Name: STAR OPTIC
Model Number: Calcite
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
Product Name: Birefringent Crystal Calcite
Usage: Idea material for NIR polarizers, such as Glan Thompson, and Glan Taylor, Glan laser polarizer.
Feature: negative uniaxial crystal that has high birefringence
Transparency Range: 350nm ~ 2300nm
Crystal Structure: Crystalline rhombihedral
Mohs Hardness: 3
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High Birefringence Laser Crystals 0.5deg Negative Uniaxial Crystal

Birefringent Crystal Calcite

Overview:

Calcite is a negative uniaxial crystal that has high birefringence, wide spectral transmission and availability in reasonably sized rhombs.


Although is a fairly soft crystal and is easily scratched, it is an ideal material used as visible and near IR polarizers, such as Glan Thompson, and Glan Taylor, Glan laser polarizer.


General Specifications Of Calcite:

Dimension Tolerance±0.1mm
Optical Axis Orientation±0.5deg
Surface Quality20/10 Scratch and Dig
Clear Aperture>90%
Surface Flatness<λ/4@633nm
Wavefront Distortion<λ/2@633nm
Parallelism<15 arc seconds
Perpendicularity<10 arc minutes
AR CoatingPer your Request

Physical and Optical Properties of Calcite:

Crystal StructureCrystalline rhombihedral
Density2.7 g/cm3
Mohs Hardness3
Hygroscopic SusceptibilityLow
Transparency Range350nm ~ 2300nm
Thermal Expansion Coefficientaa=24.39x10-6/K
ac=5.68x10-6/K
Crystal ClassNegative uniaxial with no=na=nb, ne=nc

Refractive Index

Birefringence (Δn=ne-no)

Walk-Off Angle at 45deg(ρ)

no=1.6557, ne=1.4852, Δn= -0.1705, ρ=6.32 @633nm

no=1.6381, ne=1.4783, Δn= -0.1598, ρ=6.20 @1300nm

Sellmeier Equations (λ in um)no2=2.69705+0.0192064/(λ2-0.01820)-0.0151624λ2
ne2=2.18438+0.0087309/(λ2-0.01018)-0.0024411λ2


Quality High Birefringence Laser Crystals 0.5deg Negative Uniaxial Crystal for sale
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