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Home > Products > Infrared Optics > ZnSe(Zinc Selenide)
ZnSe Blanks
CVD ZnSe is the first choice of optical components for high power CO2 lasers due to its low bulk absorption at 10.6 microns Also its high optical uniformity and low scatter make it well-suited for optical elements in high resolution thermal imaging equipment.
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| Physical Properties of ZnSe | |
| Grain size,um | 50-100 |
| Density,g/cm³,@298K | 5.27 |
| Chemical purity | >99.999% |
| CTE,k¹,@373K | 7.8X10-6 |
| Thermal conductivity,Wcm-1K-1 | 0.18 |
| Mechanical Properties of ZnSe | |
| Knoop Hardness,kg/mm² | 110 |
| Flexural Strength,Mpa | 56 |
| Young`s modulus,GPa | 67 |
| Poissons ratio | 0.28 |
| Optical Properties of ZnSe | |
| Refractive index,@9um | 2.4122 |
| Index of refraction inhomogeneity(△n/n),@0.6328 μm | 2×10-5 |
| Thermo-optic coefficient(dn/dT),@3.39 μm,(298-358K) | 6.2x10-5 |
| Bulk absorption coefficient,cm-1,10.6 μm | <5x10-4 |
Highly Recommended ZnSe from Yutai Optics:
IR ZnSe(Zinc Selenide)
Standard ZnSe Focus Lens
Customized ZnSe Focus Lens
Laser Grade ZnSe Windows
ZnSe Windows with 10.6um AR Coating
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