The excellent performance in broad-band optical transparency (except the very small (about 12.4cm-1) diamond characteristic absorption peak located at 4-6μm) , high thermal conductivity, extraordinary high hardness and high fracture toughness, and very low thermal expansion coefficient make diamond an ideal choice for highly demanding window applications such as high-power IR laser windows, high-power microwave windows to be - used in extreme harsh working conditions.
Large size high
quality optical（microwave） windows can be prepared by our company by both DC Arc Plasma
Jet and high power microwave plasma CVD at high pressures, which can benefit
you in the following fields:
·Exceptional broad band infrared transparency
·Excellent transparency in the optical and ultraviolet spectrum
·Excellent thermal conductivity
·Low scattering in infrared
·High fracture strength
·Extreme low thermal expansion coefficient
·Can achieve ultra-high-vacuum mounting
We now provide:
Dimensions and performance parameters
●Diameter φ2-6inches (φ50.8-152.4mm )
●Diameter tolerance≤ ±0.15mm
●Thickness 0.3-3mm
●Thickncss tolerance≤ ±5μm
●Planarity (flatness) of disk≤ 5μm
●Surface quality:Ra roughness(Ra)10nm
●Thermal conductivity 2000 W·m-1 ·K-1
●Vacuum Leak Integrity≤1x10-11 Pa·m3/s
●Loss tanδ≤5x10-5
●Infrared transmission@10.6um≥70%
●UV transmission@1.06um≥70%
Flatness:
4um/cm
Thickness
less than 0.15mm
Size
less than 1mm diameter
Flatness
and surface roughness as above
Hebei Plasma Diamond Technology Co., Ltd. is the professional supplier of CVD diamond which can provide various solutions in optics（microwave）. We can provide proper free standing
windows to meet your requirements.
