CVD ZnSe
CVD ZnSe optical material for CO2 laser optics and infrared assemblies, with local refractive-index reference data for engineering review.
Key Properties
Primary engineering references for material screening, packaging review, and RFQ preparation.
About CVD ZnSe
Overview
CVD ZnSe is commonly reviewed for CO2 laser windows, focusing optics, and infrared assemblies that need a relatively high refractive index with broad IR use. In practical engineering work, selection depends on wavelength band, absorption sensitivity, coating target, edge strength, and the final surface-quality requirement.
Key Material Reference
| Parameter | Reference |
|---|---|
| Practical Transmission Guidance | 0.5-20.0 µm |
| Local RII Dataset Range | 0.54-18.2 µm |
| Reference Dataset | Connolly formula 1, CVD ZnSe, 23 °C |
| Refractive Index | 2.4028 at 10.6 µm |
| Density | 5.27 g/cm3 |
| Knoop Hardness | 105-120 kg/mm2 |
| Young's Modulus | 67.2 GPa |
| Thermal Expansion | 7.1 x 10^-6 /K |
Selected Refractive Index Reference
The refractive-index points below are practical references from the local RII dataset. Final optical design and coating work should still use the confirmed wavelength band and the production grade actually ordered.
| Wavelength (µm) | Refractive Index |
|---|---|
| 0.633 | 2.5910 |
| 1.064 | 2.4823 |
| 3.390 | 2.4356 |
| 5.000 | 2.4295 |
| 10.600 | 2.4028 |
Typical Applications
- CO2 laser windows and focusing optics
- Thermal imaging assemblies with ZnSe-based components
- Infrared spectroscopy optics
- Custom IR windows, blanks, and beam-control parts
Engineering Notes
For laser-facing parts, engineers should confirm operating wavelength, power density, coating target, clear aperture, and edge condition before freezing a ZnSe drawing. Compare other available substrates from the materials index and the downstream build options under products if the design also needs beam shaping, custom edges, or drilled features.
Procurement Checklist
- State whether the RFQ is for windows, lens blanks, finished optics, or coating-ready substrates.
- Provide wavelength, dimensions, quantity, coating target, and surface-quality expectation.
- Call out any power-handling or thermal-environment concern that can change inspection or coating strategy.
- Confirm whether drawing tolerances are preliminary or frozen for production quoting.
Request Engineering Review
Send wavelength band, dimensions, quantity, coating target, and application notes through the contact page for a practical CVD ZnSe review.