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CVD ZnSe is the first choice of optical components for high power CO2 lasers due to its low bulk absorption at 10.6 microns. Also its high optical uniformity and low scatter make it well-suited for optical elements in high resolution thermal imaging equipment.

Standard ZnS, made by CVD technique, is an excellent windows and domes material for long-wave infrared imaging system for military applications, due to its high transmission, good optical uniformity and high strength.

Multispectral ZnS is made from Standard ZnS by a post-deposition hot isostatic process. This process  spreads 
the transmission band to visible(0.4-12um), thus makes the material clear like water. 
multispectral ZnS showing excellent transmission across the visible to long-wave infrared waveband, with very low scatter and absorption, is well-suited for the applications that require a single aperture for beam path for several wavebands.

CVD Zinc Sulphide (CVD ZnS)
Chemically vapor deposited zinc sulfide (CVD ZnS) is chemically inert, high hardness,highly pure, theoretically 
dense and easily machined. Zinc sulfide displays a high level of index of refraction homogeneity and offers 
imaging uniformity across the 3-12 micron waveband.
Chemically vapor deposited zinc sulfide (CVD ZnS) is the high quality alternative for infrared windows, domes and optical 
elements.With good optical properties and excellent mechanical properties, CVD ZnS has been used successfully in many military applications requiring mechanical resistance to hostile environments.

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