Andover IR AR Coatings

Infrared Anti-Reflective (IR AR) coatings are precision-engineered optical coatings designed to minimize surface reflections and enhance light transmission across the infrared spectrum (0.75 - 14µm).

These coatings play a critical role in thermal imaging systems, infrared cameras, night vision devices, and spectroscopy instruments where optimal energy throughput is essential.

While standard AR coatings are optimized for the visible spectrum, IR AR coatings are specifically designed for infrared wavelengths. They utilize materials and deposition techniques tailored to infrared substrates like germanium, silicon, and zinc selenide, and chalcogenides -- ensuring minimal reflection and maximal transmission in IR applications.

Andover offers three primary IR AR coating solutions:

• Standard IR AR Coating: Single-layer design optimized for specific IR wavelengths, offering a cost-effective solution for basic applications.

• High-Performance IR AR Coating: Advanced multi-layer design providing ultra-low reflection (≤0.25% per surface) and enhanced environmental stability for demanding applications.

• Broadband IR AR Coating: Multi-layer design offering extended spectral coverage (e.g., 3–5µm or 8–12µm) with residual reflection ≤0.5% average, ideal for thermal imaging and spectroscopy.

Andover's IR AR coatings are optimized for a range of infrared materials, including germanium, silicon, zinc selenide, and chalcogenide glass. This ensures compatibility and optimal performance across various IR optical systems.

Andover's IR AR coatings are engineered for durability, resisting temperature fluctuations, humidity, abrasion, and harsh operating conditions. For instance, the High-Performance IR AR Coating can operate within a temperature range of -70°C to +200°C and meets MIL-STD-810G environmental standards.

Yes, Andover offers custom IR AR coatings tailored to specific wavelength ranges, substrate materials, and environmental requirements. Their advanced vacuum deposition techniques and IR-optimized materials enable the production of coatings that meet unique application needs.