NO.1. The optical properties of diamond

The diamond film has the advantages of highest hardness, high thermal conductivity, high elastic modulus, small friction coefficient, good chemical stability, high spectral transmittance, large optical band gap width and high antilaser damage threshold, and can be used as excellent optical element protective film. Since the sp3 bond has no dipole moment, the diamond film has a rare wide spectral transmission characteristic. In addition to the small absorption peaks at 3 to 5 μm, the entire range of diamonds from ultraviolet to far infrared has a very high transmittance, so the diamond is the best infrared optical window material.

NO.2. The ideal optical apllication materials

Diamond film has been successfully applied to many optical materials, including silicon, germanium, zinc sulfide, glass, quartz glass, MgF2, HgCdTe, KC1 and so on.

Not only can be used as antireflective film for solar cells, but also the best window materials for high power infrared lasers and detectors .The radar waves in the penetration of diamond film is not easy to distort. Due to this characteristics, can be used as a radar cover. Aircraft and missiles in the supersonic flight, the head coneshaped radar can not withstand high temperatures and difficult to withstand high speed raindrops and dust impact. With a diamond film applied to radar cover, not only fast heat dissipation, good wear resistance, but also can solve the radar cover withstand high speed flight and the sudden change in temperature problem at the same time.

NO.3. Our products :CVD industrial synthetic diamond used in optical window

Chemical Vapor Deposition (CVD) diamond film is made by chemical vapor deposition process. It is in transparent after being double sided polished. The regular diameter can be up to more than 120 mm, and its light transmittance can be up to more than 60% when its thickness is 1 mm. As the typical multifunctional material, the diamond provides  high thermal conductivity, high refractive index, radiation resistance, chemical inertness, excellent electrical and mechanical properties, and it is particularly suitable for infrared optical window with 8~12μm long wave.

In all the infrared optical materials, CVD diamond film is the only material combining light transmission, thermal shock resistance and with high durability to the impact of raindrops and solid particles as well as chemical corrosion. More importantly, the extremely low thermal expansion coefficient and high thermal conductivity makes the diamond with excellent ret resistance. It keeps nice optical performance in high temperature environment, making it the best material for infrared optical windows serving in harsh environment.

Application: Window materials for high power laser and detector, protective film for optical lens, radiation detectors and missile radome, etc.

NO.4. The advantages of our products

ü Large size (up to diameter 120mm)

ü Highest transmittance (up to 71%)

ü High hardness

ü High thermal conductivity

ü Longer lifespan