Products
Density (g.cm-3@298K): 4.09
Resistivity（oh.cm): ≈10¹²
Melting point (℃): ≈1830°C
Chemical purity (%): 99.9996
Wavelength: 1000nm-14000nm
Refractive index : <7.3*10-4@10600nm
absorption coefficient: 0.2@10600nm
Hotlight coefficient : 4.6*10-5@1150nm,4.3*10-5@3390nm
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 the high quality alternative for infrared windows, domes and optical elements. CVD Multispectral Zinc Sulphide is also called Cleartran. With good optical properties and excellent mechanical properties, CVD ZnS has been used successfully in many military applications requiring mechanical resistance to hostile environments.
Cleartran ZnS Windows Properties
Optical properties: high transmittance in visible, near-infrared, mid-infrared and far-infrared wavelengths.
Mechanical properties: high hardness, good wear resistance and impact resistance.
Thermal properties: low coefficient of thermal expansion, good thermal stability.
Chemical stability: corrosion resistant, suitable for harsh environments.
