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| Brand Name : | ZCQ | 
| Model Number : | Customized | 
| Certification : | RoHS | 
| Payment Terms : | T/T | 
| Supply Ability : | 1000 pieces per month | 
| Delivery Time : | 3-4 weeks | 
Calcite Crystal Used In Polarization Devices
Calcite crystal is a kind of natural birefringent material, which has good optical properties in near infrared. Calcite crystal is widely used in polarization devices because of its large size and low price.
Application: Gran prism, polarization beam splitter, etc.
Calcite Crystal Characteristics
| Using Wavelength | 350~2300nm | 
| Density | 2.7 g/cm 2 | 
| Deliquescence | Non deliquescence | 
| Mohs hardness | 3 | 
| Thermal conductivity | αa=24.39 X10-6/K | 
| ac=5.68X10-6/K | |
| Damage threshold | >1GW/cm2 | 
| Refractive index | No= 1.66315,Ne= 1.48854,532nm No=1.64237,Ne=1.47968,1064nm | 
| Sellmeier equation (λ in μm) | no2=2.69705 + 0.0192064/(λ2-0.01820) - 0.0151624λ2 ne2=2.18438 + 0.0087309/(λ2-0.01018) - 0.0024411λ2 | 
Processing Specifications
| Material | Calcite crystal | 
| Processing dimension | 1mm-40mm | 
| Surface quality | 10-5 | 
| Optical axis accuracy | 6 arc min | 
| Parallelism | <10 arc sec | 
| Flatness | λ/4@633nm | 
| Clear aperture | >90% | 
| Coating | Coating according to customer’s requirement | 
| Bracket | Custom according to customer’s requirement | 
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| Company Info. | 
| Yantai ZK Optics Co., Ltd. | 
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