ZnSe Stepped Windows
ZnSe stepped windows with custom step geometry for mounted IR assemblies, laser resonators, and beam-shaping optical layouts.
Quick Specifications
Product Description
Overview
ZnSe stepped windows use a controlled step profile to support mounted infrared assemblies, laser resonators, and opto-mechanical interfaces that need more than a simple flat window. The source material highlights varying step heights, widths, and profiles for application-specific optical and mounting requirements.
Why this material or geometry matters
CVD ZnSe is widely selected for CO2 laser and infrared transmission paths because it combines low absorption with broad mid-IR use. In stepped-window designs, the geometry is as important as the material: the step can help locate the part in a seat, define mating surfaces, and support optical functions such as filtering, beam shaping, or controlled path differences when the assembly requires it.
Quick Specifications
| Parameter | Value |
|---|---|
| Material | ZnSe |
| Dimension | 0.5-600 mm |
| Dimension Tolerance | +0.0/-0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Parallelism | 1 arcmin standard, 10 arcsec high precision |
| Surface Figure | λ/4 to λ/20 @ 632.8 nm |
| Surface Quality | 60/40 standard, 10/5 high precision |
| Effective Aperture | >90% |
| Coating | Upon request |
Typical Applications
- Laser resonator windows
- Stepped window seats and drop-in mounts
- Beam-shaping optical assemblies
- Infrared filtering structures
- Mechanically constrained IR housings
Engineering Notes / Selection Guidance
The source file indicates that stepped profiles may be single-layer or multi-layer, with thickness differences ranging from several micrometers to several millimeters. Before ordering, engineers should confirm the step profile, shoulder height, clear aperture, coating target, beam footprint, and seat geometry. If the part is used for phase-sensitive or beam-conditioning work, the optical function of each step should be defined in the drawing package.
Request a Quote / Contact
Send the drawing, step dimensions, seat details, wavelength, coating target, and quantity through the contact page for engineering review.
Key Features
Applications
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