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 Product Information
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Specifications
Dimension tolerance: ±0.1mm
Flatness: l/8 @633nm
Surface quality: Scratch/Dig １０/５
Parallelism: better than 10 arc sec.
Perpendicularity: better than 5 arc min
Angle tolerance: △q < 0.5°,△f < 0.5°
AR coating: dual band AR coating at 1064/532 nm for both faces
residual reflectivity: R1064<0.1% ,R532<0.2%
Clear aperture: >90% central area
Transmitting wavefront distortion: less than l/4 @ 633nm
Homogenity:δ≈10-6/cm
Quality Warranty Period: one year under proper use
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| Structural and Physical Properties |
| Crystal Structure |
Orthorhombic, point group mm2 |
| Cell Parameters |
a = 6.404Å, b = 10.616Å, c = 12.814Å Z = 8 |
| Melting Point |
1172 oC Incongruent |
| Curie point |
936 oC |
| Mohs Hardness |
» 5.0 |
| Density |
3.01g/cm3 |
| Linear Absorption Coefficients |
a <0.001 cm-1 @ l =1064 nm or 532 nm |
| Hygroscopic Susceptibility |
no |
| Relative Dielectric Constant |
eeff=13 |
| Specific heat |
0.1643 cal/g.oC |
| Electrical conductivity |
3.5x10-8 s/cm (c-axis, 22oC, 1KHz) |
| Thermal Conductivity |
13W/m/K |
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