- 首頁
- 產(chǎn)品
- 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(chǎn)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.
