8μm-14μm Silicon Infrared AR Windows with AR and DLC Coating

Coligh manufactures large amount of silicon infrared AR windows with AR and DLC coating. They are made with Monocrystalline Silicon and both side AR and DLC coated 8-14μm high transmission >=80%. Although germanium has a much higher transmittance than silicon at 8-14 μm, and although silicon’s characteristics are not suitable for 8-14 μm, germanium is difficult to buy due to China’s current export controls on germanium. In some thermal imaging windows, gas detection, and infrared optical systems, it can achieve a transmittance of more than 80% at 8-14 μm through multi-layer AR coating. In addition, silicon has a lower density and higher mechanical strength, so it can replace germanium under certain conditions.

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8μm-14μm Silicon Infrared AR Windows with AR and DLC Coating Standard Specification

• Type: AR Protective Windows
• Coating Type: Double side AR Coating and DLC coating.
• Substrate: Silicon
• Transmission: 8μm-12μm>=80%
• Thickness: 0.5mm
• Size:  φ100*0.5mm,φ10*0.5mm, 8*8*0.5mm, φ25*0.5mm, φ9.6*0.5mm, we can cut and grand according to client’s request

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Other AR windows with AR and DLC coating Option In Stock Avaliable:

• Wavelength range 1: 3μm-13.5μm
• Wavelength range 2：2μm-14μm
• Wavelength range 3 ：3μm-9μm
• Wavelength range 4 ：7μm-14μm
• Wavelength range 5 ：7.5μm-13.5μm

8μm-14μm Silicon Infrared AR Windows with AR and DLC Coating Stock Status

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8μm-14μm Silicon Infrared AR Windows with AR and DLC Coating Applications:

• Handheld Thermal Imaging Devices
  8-14μm transmission IR silicon windows make handheld thermal imaging devices lightweight, ensuring maximum transmittance within a limited aperture. The DLC coating is scratch-resistant and provides protection for handheld thermal imagers.
• Security Camera Modules
  Modular infrared cameras are often used outdoors, and the protective windows are susceptible to environmental impact, making coating protection crucial. 8-14μm transmission IR silicon windows can serve as protective windows for infrared camera modules. With AR and DLC coatings, they improve operational stability.
• Industrial Infrared Sensors
  Industrial sites are often subject to high temperatures, dust, and oil mist, requiring windows to operate stably over the long term. The DLC coating on 8-14μm transmission IR silicon windows protects against oil and metal dust, while the AR coating ensures signal strength. This improves sensor lifespan and reliability in harsh industrial conditions.