Zinc Sulfide FLIR (ZnS)

Zinc Sulfide (ZnS) Data Sheet

Polycrystalline zinc sulfide is usedinoptical systems of high-speed aircrafts for detectinglow-temperature targets.

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

Optical Properties
ZnS transmission

Transmission Range :1.0 to 13 m
Refractive Index :2.192 at 10.6 m
Reflection Loss :24.6% at 10.6 m (2 surfaces)
Absorption Coefficient :0.02 cm-1 at 3.8 m
Reststrahlen Peak :30.5 m
dn/dT :+43 x 10-6/C at 3.39 m
dn/d = 0 :n/a
Density :4.08 g/cc
Melting Point :1827C (See notes below)
Thermal Conductivity :16.7 W m-1 K-1 at 296K
Thermal Expansion :6.6 x 10-6 /C at 273K
Hardness :Knoop 160 with 50g indenter
Specific Heat Capacity :469 J Kg-1 K-1
Dielectric Constant :n/a
Youngs Modulus (E) :74.5 GPa
Shear Modulus (G) :n/a
Bulk Modulus (K) :n/a
Elastic Coefficients :Noy Available
Apparent Elastic Limit :103.4 MPa (15,000 psi)
Poisson Ratio :0.29
Solubility :65 x 10-6 g/100g water
Molecular Weight :97.43
Class/Structure :Polycrystalline cubic, ZnS, F43m

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