Our Multi-Layer Broadband IR AR Coatings are meticulously engineered to optimize light transmission across specific wavelengths. The coatings can be deposited on diverse materials such as Silicon, Germanium, Multispectral ZnS, Zinc Selenide, and Chalcogenides, making them incredibly versatile for various industry needs.

Our customers can choose from our impressive coatings line-up that includes the Multi-Layer Broadband (HDAR on Silicon) and Multi-Layer Broadband (HEAR on Germanium). The HDAR on Silicon, optimized for 3-5 µm, and the HEAR on Germanium, optimized for 8-12µm (also available on MS ZnS and ZnSe), offer an expansive range to match diverse application needs.

The competence of G&H's Multi-Layer Broadband IR AR Coatings goes beyond mere technical superiority. These coatings are also certified to meet rigorous military environmental conditions laid down by MIL-C-48497A, and MIL-STD-810G Method 509.5 (10 days) for the HDAR on Silicon. The HEAR on Germanium meets the military specifications of MIL-C-48497A including Para 4.5.3.1 for Adhesion, Para 4.5.3.2 for Humidity, and Para 4.5.3.3 for Abrasion.

Choosing our Multi-Layer Broadband IR AR Coatings translates to securing a solution built on a foundation of superior performance, enduring quality, and stringent compliance to military standards. These coatings significantly reduce surface reflection in the infrared spectrum, ensuring optimal signal transmission and crystal-clear information delivery.

Applications

• Thermal imaging: In thermal imaging systems, these coatings help enhance the performance of lenses and windows by increasing light transmission and improving image quality and detection capabilities.
• Military and defense: In applications such as night-vision devices and surveillance systems, Multi-Layer Broadband infrared anti-reflective coatings provide enhanced optical performance and durability, enabling reliable operation in challenging environments.
• Remote sensing: In remote sensing systems, these coatings can improve the transmission of infrared light across a broad range of wavelengths, resulting in higher-resolution data and more accurate measurements.
• Laser systems: Multi-Layer Broadband infrared anti-reflective coatings help reduce reflection losses and optimize the transmission of laser light in laser-based applications, improving the overall efficiency and performance of the system.
• Medical devices: Infrared anti-reflective coatings can enhance the performance of medical devices that utilize infrared light, such as diagnostic equipment and surgical tools, enabling more accurate diagnoses and more precise procedures.

Key Metrology

• UV, VIS, and IR spectrometers
• 4 point conductivity probe
• MIL standard temperature and humidity chambers

Key Equipment & Processes

• Thin-film design including bespoke HUD design software
• PVD, CVD, and IBS coating platforms
• Laser test to MILT-DTL-62422
• TS1888 DLC test bench

HDAR on Silicon

Specifications

• Optimised for 3-5 µm.

Substrates

• Silicon
• Germanium
• Zinc Sulphide
• Zinc Selenide
• Calcium Fluoride
• Barium Fluoride
• Magnesium Fluoride
• Chalcogenides
• Nickel-plated Aluminium

Conformance

• MIL-C-48497A
• MIL-STD-810G Method 509.5 (10 days)

HDAR on Germanium

Specifications

• Optimised for 8-12µm on Germanium (also available on MS ZnS and ZnSe).

Substrates

• Silicon
• Germanium
• Multispectral ZnS (Zinc Sulfide)
• Zinc Selenide
• Chalcogenides

Conformance

• MIL-C-48497A
• Para 4.5.3.1 Adhesion
• Para 4.5.3.2 Humidity
• Para 4.5.3.3 Abrasion