| 直径 | 厚度 |
|---|---|
| 2inch | 无 |
Property | Value |
Vickers hardness* | 10,000 kg/mm2 |
Young's modulus* | 1050 GPa |
Poisson's ratio | 0.1 |
Density | 3.515 g/cm3 |
Atom density* | 1.77×1023 1/cm3 |
Thermal expansion coefficient | 1.0*10-6/K @300K |
Sound velocity* | 17,500 m/s |
Friction coefficient | 0.1 |
Specific heat @ 20°C | 0.502 J/gK |
Debye temperature* | 1860 10K |
Bandgap | 5.45 eV |
Resistivity | 1013 - 1016 ohmm |
Property | Value |
Transmission | 225nm to far IR , > 70% @ 10µm |
Refractive index | 2.38 @ 10µm, 2.41 @ 500nm |
Absorption coefficient | 0.10 cm-1 @ 10µm |
Bandgap | 5.45 eV |
Tensile strength (0.5mm thick) | |
Nucleation surface in tension Growth surface in tension | 600 MPa 400 MPa |
Loss tangent (tan @140 GHz) | < 2.0×10-5 |
Dielectric constant | 5.7 |
Property | Value |
Dimensions | |
Thickness Diameter | 10 - 2000 µm up to 100 mm |
Surface finish | |
Shape | flat, spherical (convex & concave) |
Roughness | < 5 nm* |
Flatness | 1 fringe/cm* |
Wedge | 0 – 1°* |
Antireflection Coatings (visible and infrared) | |
Spec. Transmission at 10.6 µm >98.6 % | |
Wavefront distortion | |
< 4 fringes at 633 nm over 30 mm* | |
Mounting | |
Diamond windows mounted e.g. in UHV flanges (bakeable at 250°C, vacuum tight < 10-10 mbar l/s)* | |
我们提供的金刚石产品包括：
航天用的CVD 金刚石窗片分束镜
高精度抛光金刚石球透镜
CVD 金刚石UHV窗口
高功率CO2激光器窗口
直径80mm的金刚石wafers
高功率X射线窗口
金刚石透射曲线图
太赫兹介电性能：
无
