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| Crystals |
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Tel:+86-(0)591-87846955
+86-(0)591-87846952
Fax: +86-(0)591-87856157
Address:NO. 67, YangQi Road, JinShan FuWan Industrial Park, Fuzhou, FuJian, 350026, China
E-mail: sales@phosctech.com
Website: www.phosctech.com |
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 CaF2 Crystal |
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CaF2 crystals have the following exceptional properties that make it a very important optics crystal:
High optical transmittance from the vacuum ultraviolet to the infrared spectrum region(0.13-11μm).
Properties:
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Density
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3.18 g/cm3
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Melting Point
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1357~1360℃
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Lattice Constant
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5.46 Å
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Hardness (Knoop)
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178 [100], 160 [110]kg/mm2
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Dielectric Constant
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6.76 ，105HZ
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Crystal Type
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cubic, CaF2 type structure
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Cleavage Planes
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(111)
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laser windows for Excimer laser
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deliverable in IR, UV and DUV
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Refractive Index:
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Wavelength, µm
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0.19
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0.21
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0.25
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0.33
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0.41
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0.88
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2.65
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3.90
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5.00
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6.20
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7.00
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8.22
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Refractive Index
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1.51
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1.49
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1.47
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1.45
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1.44
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1.43
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1.42
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1.41
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1.40
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1.38
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1.36
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1.34
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PHOSCTECH can provide different dimension CaF2 lens, CaF2 window, CaF2 Prism and CaF2 wedge.
Capability:
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Attribute
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Commercial
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High Precision
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Diameter Available
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2mm～200mm(IR grade)
2mm～80mm(UV grade)
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2mm～200mm(IR grade)
2mm～80mm(UV grade)
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Typical Thickness
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0.5mm,2mm,5mm,8mm,10mm
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0.5mm,2mm,5mm,8mm,10mm
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Oriential Tolerance
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2 arc minutes
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2 arc minutes
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Dimension Tolerance
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± 0.1mm
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± 0.02mm
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Surface Quality
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60-40 scratch and dig
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20-10 scratch and dig
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Flatness
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λ/2
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λ/8
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Parallelism
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20"
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2"
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Perpendicularity
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15'
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5'
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Centration(arc min)
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＜3'
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＜1'
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Note: Coating are available upon request
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中文版
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