Infrared Optical Interference Filters

Anti-Reflection Coatings

Capabilities in anti-reflection coatings range from single layers to advanced high efficiency multi-layer coatings. These coatings can be applied to windows, lenses or customer supplied substrates.

For special applications, the coatings can be designed for operation at angles of incidence other than normal, or optimized for particular wavelength regions.

High efficiency multi-layer broadband coatings find widespread use in the 3-5 micron or 8-12 micron regions (the “atmospheric windows”).

High Efficiency Multi-layer Broadband Coatings

Typical Wavelength ranges 3-5, 5-8 and 8-12 micron
Typical average transmission > 95%
Substrate material Germanium

Single Layer Coatings

Wavelengths available 0.9 to 20 micron
Typical peak transmittance > 95%
Substrate materials germanium, silicon, sapphire, zinc selenide, gallium arsenide

Typical Performance

Neutral Density Curve
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ELECTRO OPTICAL COMPONENTS, Inc.

NOC & Wavelength Technology offer a wide variety of interference
infrared filters, distributed  in North America exclusively
by ELECTRO OPTICAL COMPONENTS, Inc.