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ZnSe and coating materials
Project Description ZnSe material is a yellow transparent polycrystalline materials, crystalline particle size of about 70渭m, transmission range of 0.5-15渭m. By chemical vapor deposition (CVD) methods of synthesis of the basic non-existent impurities absorption, low scattering loss. Because of the 10.6渭m absorption wavelength of light is very small, has become the production of high-power CO2 laser optics system, the material of choice. In addition, in its entire transmission band, but also in different optical systems in the commonly used materials.
      ZnSe material for the thermal shock of high capacity, make it a high-power CO2 laser system, the best optical materials. Hardness level multi-spectral ZnS is only 2 / 3, the soft material scratches easily, but the larger the refractive index of materials, so the need for coating the surface hardness by high-reflective film to be protected and a higher transmittance. Commonly used in their spectral range, the scattering is very low. In used high-power laser devices, the need for strict control of the body to absorb the material and the internal structure of defects and destruction of the use of the smallest degree of polishing technology and the highest optical quality of the coating process.
      ZnSe material used to produce a total reflection mirror, half mirror, beam expander mirror, flat-field lens, the lens mid-infrared, far-infrared laser power 10.6Um/CO2 size convex lens on a variety of flat, convex and concave crescent cutting lens, gold-plated mirror, round mirror polarization, beam expander mirror, such as flat-field lens. are widely used in lasers, medicine, astronomy and infrared night vision and other fields.
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