Calcium Fluoride (CaF2) Window
Low-dispersion CaF2 windows for UV lasers, lithography-related optics, and IR applications requiring high laser damage threshold.
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Calcium Fluoride (CaF2) Window
Low-dispersion CaF2 windows for UV lasers, lithography-related optics, and IR applications requiring high laser damage threshold.
Key specifications
| Coating | Uncoated / BBAR |
|---|---|
| Flatness | λ/4 to λ/10 |
| Material | CaF2 |
| Transmission | Approx. 0.13–10 μm |
| Surface Quality | 40/20 / 20/10 typical options |
- Drawing-based OEM / ODM
- Prototype to volume
- ZYGO metrology available
Product description
Calcium fluoride (CaF2) combines low refractive index, low dispersion, and strong UV–IR transmission. It is widely selected for excimer and UV laser paths, precision metrology, and selected IR windows.
We supply polished CaF2 windows with surface quality and flatness grades matched to the system — from general instrument windows to higher-spec λ/10 class surfaces. Broadband AR coatings can be applied for designated bands.
As a fluoride optic manufacturer, YC Infrared Optics handles cutting, polishing, cleaning, and inspection in-house for consistent lot quality.
Where this optic is used
Typical markets and systems that specify this component family.
Medical Laser Systems
Windows, focusing lenses, and protective optics for surgical and therapeutic laser platforms.
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Infrared Thermal Imaging
Germanium lenses and fluoride windows for security thermography, gas detection, and IR sensing.
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Research & Metrology
High-precision lenses, windows, and prisms for laboratories, universities, and instrument makers.
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Need a custom version of this optic?
Send wavelength, diameter, substrate, and coating requirements — we quote prototypes and production volumes.