Optical constants of ZnS (Zinc sulfide)
Debenham 1984: Cubic ZnS; n 0.405–13 µm
Complex refractive index (n+ik)
Derived optical constants
Dispersion formula
$$n^2=8.393+\frac{0.14383}{λ^2-0.2421^{2}}+\frac{4430.99}{λ^2-36.71^{2}}$$Comments
Cubic ZnS, 20 °C
References
1) M. Debenham.
Refractive indices of zinc sulfide in the 0.405-13-µm wavelength range.
Appl. Opt., 23, 2238-2239 (1984)
2) C. A. Klein.
Room-temperature dispersion equations for cubic zinc sulfide.
Appl. Opt. 25, 1873-1875 (1986)
*Ref. 2 provides a modified Sellmeier equation based on data from Ref. 1
Data
Additional information
About Zinc sulfide
Zinc sulfide (ZnS) is a semiconducting material that exhibits either a sphalerite (cubic) or wurtzite (hexagonal) crystal structure. It has a direct bandgap of around 3.68 eV for the cubic form and 3.91 eV for the hexagonal form. Due to its luminescent properties, ZnS has been extensively used in applications like electroluminescent panels, X-ray screens, and phosphorescent materials. Doped ZnS, especially with copper or silver, can produce phosphorescent materials widely used in various displays. ZnS is also employed as a host matrix in many quantum dot applications. Additionally, its infrared transmission capability makes it valuable for infrared optics, and it's frequently used in infrared windows and lenses. Minerals: Sphalerite (mineral of cubic ZnS), Wurtzite (mineral of hexagonal ZnS)
Other names and variations:- ZnS
- Zinc sulphide
- Zinc blende
- Sphalerite
- Wurtzite