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      • 冰洲石(Calcite)
       
      冰洲石(Calcite)

       

      冰洲石(Calcite)晶體是一種天然雙折射材料,在可見到近紅外具有比較好的光學性能。冰洲石可加工產品的尺寸較大,并且價格實惠,被廣泛應用于偏振器件和補償器件中。

      應用:格蘭棱鏡、偏振分束器、補償器等等..

        .

      Specifications:

      Dimension Tolerance:
      +/-0.1mm
      Optical Axis Orientation :
      +/-0.5deg
      Parallelism:
      <10 arc secs
      Perpendicularity:
      <5 arc mins
      Surface quality:
      20/10
      Flatness:
      < λ/4 @632.8nm
      Wavefront Distortion:
      < λ/2 @632.8nm
      Coating:
      Coating upon Request
       
       

      Properties:  

      Crystal Structure
      Crystalline rhombihedralCubic
      Density
      2.7 g/cm3
      Transmission Range
      350-2300nm
      Mohs Hardness
      3
      Hygroscopic Susceptibility
      Low
      Thermal Expansion Coefficients(/CO

      24.39X10-6 (C );  5.68X10-6 (A )

      Refractive Indices

      No= 1.66315,Ne= 1.48854,532nm

      No=1.64237,Ne=1.47968,1064nm

      Sellmeier Equation (λ in μm)
      ne2=2.18438 + 0.0087309/(λ2-0.01018) - 0.0024411λ2

      no2=2.69705 + 0.0192064/(λ2-0.01820) - 0.0151624λ2

       

      Note: Kinds of sizes, cut angle, coating are available upon request.


         PDF to download

       
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