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Jichuan Street, Taixing City, Jiangsu Province
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Taixing Hechen Crystal Technology Co., Ltd
CVD zinc sulfide window plate
NegotiableUpdate on 05/19
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Overview
Can process shapes such as circles, rectangles, polygons, and other shapes. Size range: diameter (maximum diagonal): 8- 300mm $r $n thickness: 0.05-50mm $r $n surface reflection PV better than 1/4 λ, transmission PV better than 1/10 λ $r $n smoothness 10-5 20-10 40-20 $r $n surface roughness less than 5nm $r $n parallelism less than 20 "$r $n coating can be customized according to customer requirements
Product Details
| By wavelength range |
1000nm-14000nm | 370nm-14000nm |
| Uneven refractive index (Δ N/N) | ＜7.3*10^ -4@10600nm |
＜0.2*10^ -4@632.8nm |
| Absorption coefficient (1/cm) |
0.2@10600nm |
0.2@10600nm |
| Thermal optical coefficient, dn/dT（1/K，298-358K） |
4.6*10^ -5@1150nm |
5.43*10^ -5@632.8nm |
| 4.3*10^ -5@3390nm | 4.21*10^ -5@1150nm | |
| 4.1*10^ -5@10600nm | 3.87*10^ -5@3390nm |
Variation of refractive index with wavelength (CVD zinc sulfide 20 ℃)
| 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 | 2.180 |
| 5000 | 2.246 |
12200 |
2.167 |
| 7000 |
2.232 |
13800 | 2.132 |
| 9000 | 2.212 |
14200 | 2.126 |
CVD zinc sulfide is a chemically inert material with high purity, insolubility in water, moderate density, and ease of processing. It is widely used in the production of infrared windows, fairings, and infrared optical components. Like zinc selenide (ZnSe), zinc sulfide (ZnS)）It is also a material with good refractive index uniformity and consistency, with excellent image transmission performance in the 8000nm-12000nm wavelength range. The material also has high transmittance in the mid infrared wavelength range, but with shorter wavelengths, absorption and scattering increase. Compared with zinc selenide (ZnSe), zinc sulfide has a lower price, higher hardness, twice the fracture strength of zinc selenide, and stronger resistance to harsh environments, making it very suitable for use in fairings andThe infrared window of the aircraft.
