Infrared filters and coatings

The Infrared Multilayer Laboratory is available to design and manufacture high precision custom made infrared optical filters in the 3-30µm range tailor made to suit your specification requirements. We are able to deposit thin-film coatings on a wide variety of substrate materials and sizes to suit.

The different coating types and substrate materials:

Coating types

• Narrow bandpass filters
• Wide bandpass filters
• Longwave-pass edge filters
• Shortwave-pass edge filters
• Broadband antireflection coatings
• Single wavelength antireflection coatings
• Notch filters

Substrate materials

• Cadmium Telluride (CdTe)
• Calcium Fluoride (CaF2)
• Gallium Arsenide (GaAs)
• Germanium (Ge)
• KRS5 Thallium Bromo-Iodide (TlBr-TlI)
• Sapphire (Al2O3)
• Silicon (Si)
• Zinc Selenide (ZnSe)
• Zinc Sulphide (ZnS)