Zinc Sulfide MultiSpectral (ZnS MS)

Zinc Sulfide MultiSpectral (ZnS MS) Data Sheet

Multispectral zinc sulfide is used in optical systems of high-speed aircrafts for detecting low-temperature targets and also in other optical systems operating in the visible spectrum and 3-5 um and 8-12 um atmospheric transparency windows.

Products and Technology Advantages
R'AIN Optics has the technology of manufacturing large optical elements of multispectral zinc sulfide. This technology known by only several companies in the world.

Optical Properties

ZnS MS transmission

Transmission Range :0.37 to 13.5 m
Refractive Index :2.20084 at 10 m
Reflection Loss :24.7% at 10 m (2 surfaces)
Absorption Coefficient :0.0006 cm-1 at 3.8 m
Reststrahlen Peak :30.5 m
dn/dT :+38.7 x 10-6 /C at 3.39 m
dn/d :n/a
Density :4.09 g/cc
Melting Point :1827C (See notes below)
Thermal Conductivity :27.2 W m-1 K-1 at 298K
Thermal Expansion :6.5 x 10-6 /C at 273K
Hardness :Knoop 160 with 50g indenter
Specific Heat Capacity :515 J Kg-1 K-1
Dielectric Constant :88
Youngs Modulus (E) :74.5 GPa
Shear Modulus (G) :n/a
Bulk Modulus (K) :n/a
Elastic Coefficients :Not Avalailable
Apparent Elastic Limit :68.9 MPa (10,000 psi)
Poisson Ratio :0.28
Solubility :65 x 10-6 g/100g water
Molecular Weight :97.43
Class/Structure :HIP polycrystalline cubic, ZnS, F42m

Grown Crystals Maximum Dimensions
350 x 300 x 22mm

Fabricated Optics Maximum Dimensions
Up to dia 320 x 22mm

Delivery options
Blanks, SMTY, Windows, Lenses

Delivery Terms
Standart shipment time 3 weeks