Zinc Selenide ZnSe
Zinc selenide(ZnSe) offers high purity,environmental adaptability,easy machining,low transmission loss and good transparency for laser/IR thermal-imaging systems. Low absorption at10.6μm makes it a preferred high-power CO₂-laser optic material. Uses include focusing lenses,windows,output couplers and beam expanders across its transmission range,in lasers,medicine,astronomy and IR night vision. 光智科技's expertise and production experience support long-term supply of quality ZnSe blanks and lenses to well-known domestic/overseas companies.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Growth | CVD |
| Crystal Structure | Cubic |
| Grain Size | ≤100 μm |
| Purity | 5N |
| Grade | Infrared Grade, Laser Grade, Low-Power Grade |
| Transmission Wavelength Band | 0.5~22 μm |
| Transmittance [10.6μm] | ≥70 % |
| Absorption Coefficient [10.6μm] | ≤0.0005 cm⁻¹ |
| Refractive-Index Uniformity | 3×10⁻³ |
| Refractive Index [10μm; Same Value in Left Optical Properties and Right Wavelength Tables, Recorded Once] | 2.4070 |
| Refractive-Index Temperature Coefficient dn/dt [10μm; Source Double Slash/Negative-Exponent Unit Retained Literally] | 6.1×10⁻⁵/K⁻¹ |
| Disk Dimensions [Independent Shape/Dimensions Table, No Matching Structural Drawing] | Diameter ~450mm, Thickness ~50mm; Cylindrical Surface Can Be Bright Polished |
| Square-Plate Dimensions [Independent Shape / Dimension Table] | Length×Width ~450×450mm, Thickness Range ~50mm |
| Dome Dimensions [Independent Shape / Dimension Table] | Diameter ~400 |
| Custom-Shaped Plate | Various Shapes Can Be Processed |
| Roughness [Shape / Dimension Tolerance] | ≤1 μm |
| Roundness [Shape / Dimension Tolerance] | ≤0.03 mm |
| Refractive Index [Wavelength 2μm; separate wavelength/refractive-index table on the right] | 2.4467 |
| Refractive Index [Wavelength 3μm; separate wavelength/refractive-index table on the right] | 2.4380 |
| Refractive Index [Wavelength 4μm; separate wavelength/refractive-index table on the right] | 2.4336 |
| Refractive Index [Wavelength 5μm; separate wavelength/refractive-index table on the right] | 2.4300 |
| Refractive Index [Wavelength 6μm; separate wavelength/refractive-index table on the right] | 2.4263 |
| Refractive Index [Wavelength 7μm; separate wavelength/refractive-index table on the right] | 2.4223 |
| Refractive Index [Wavelength 8μm; separate wavelength/refractive-index table on the right] | 2.4178 |
| Refractive Index [Wavelength 9μm; separate wavelength/refractive-index table on the right] | 2.4127 |
| Refractive Index [Wavelength 11μm; separate wavelength/refractive-index table on the right] | 2.4006 |
| Refractive Index [Wavelength 12μm; separate wavelength/refractive-index table on the right] | 2.3935 |
| Refractive Index [Wavelength 13μm; separate wavelength/refractive-index table on the right] | 2.3857 |
| Refractive Index [Wavelength 14μm; separate wavelength/refractive-index table on the right] | 2.3768 |
Applications
Datasheet
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