Northumbria Optical Coatings Ltd
* * PLEASE NOTE - NOC SUMMER SHUTDOWN - Monday 29th July - Friday 9th August 2024 - Any orders placed during this time will be shipped within 48hrs of our return * *


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 optimised 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


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