CVD Zinc Sulfide

CVD zinc sulfide has the characteristics of high purity, insoluble in water, moderate density, and easy processing. Used for the production of infrared lenses, infrared windows, fairings, and infrared optical components. In addition, CVD zinc sulfide is also an optical material with good refractive index uniformity and consistency, and has good image transmission performance in the 8μm-12μm wavelength range. It also has a high transmittance in the mid infrared band, but as the wavelength becomes shorter, absorption and scattering increase. It can process shapes such as circular, rectangular, perforated, crescent, wedge-shaped, flat convex, flat concave, double convex, double concave, open ball, and prismatic. UM OPTICS has complete optical crystal production equipment and experience, and can provide high-quality CVD zinc sulfide crystals.

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The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

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If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Dia(mm)	ThK(mm)	Growth Mode	Orientation	Shape
	Screen Reset 3-200	Screen Reset 0.5-60	Screen Reset CVD	Screen Reset None	Screen Reset Customizable
More+ Less	3-200	0.5-60	CVD	None	Customizable
CVD ZnS，3-200mm Number：ZnSA001 Dia(mm)：3-200 ThK(mm)：0.5-60 Growth Mode：CVD Orientation：None Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Zine Sulfide（ZnS） Transmission Range：1-14μm Density(g/cm³)：4.09 REACH：Compliant ROHS：Compliant

Material Data
Physical Properties
Density [g/cm3]	4.09
Resistivity [Ω.cm]	～1012
Melting Point [℃]	1827
Chemical Purity [%]	99.9996
Thermal Expansion [1/K]	6.610-6@273k 7.310-6@373k
Thermal Conductivity [J/k.m.s]	16.7@298k
Specific Heat Capacity [J/g.K]	0.469@298k
Knoop Hardness [kg/mm2]	200-235
Bending strength [Mpa]	103
Young's Modulus [GPa]	74.5
Poisson's coefficient	0.29
Optical Properties
Transmission Range	1-14μm
Refractive index inhomogeneity [△n/n]	<7.3*10-4@10.6μm
Absorption coefficient [1/cm]	0.2@10.6μm
Thermal light coefficient [1/k,298-358k]	4.610-5@1150nm 4.310-5@3390nm 4.1*10-5@10.6μm

Wavelength(nm)	Refractive Index(n)	Wavelength(nm)	Refractive Index(n)
620	2.355	9800	2.203
1000	2.292	10600	2.192
3800	2.253	11400	2.18
5000	2.246	12200	2.167
7000	2.232	13800	2.132
9000	2.212	14200	2.126