联系人：筱晓光子-关经理
邮箱：moli@microphotons.com
电话：13061644116
地址： 上海青浦区佳杰路99号长三角漕河泾绿洲智谷A5栋三楼
| 品牌 |
筱晓光子 |
型号 |
MP-CVDD-W-31X9-1-AR |
| 货号 |
H80040005 |
材质 |
CVD金刚石 |
总览
微波等离子体CVD金刚石圆片：掺硼盘（蓝色）、光学级金刚石、机械级、未抛光盘。CVD金刚石最重要的性能是的硬度，高的导热系数（>1800 W/mK，是铜的五倍）
宽带光学透明度，极度化学惰性，不受任何酸或其他化学物质的影响。仅在非常高的温度下（T>700°C，含氧环境下）石墨化，在惰性环境中为1500℃）
型号参数
| 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)*
| |
13061644116