An anti-reflection (AR) coating is a type of optical coating that is applied to the surface of an optical element to reduce the amount of reflection and increase the amount of transmitted light. A single-wavelength AR coating, as the name suggests, is designed to reduce the amount of reflection at a specific wavelength.

In the case of an 808nm wavelength, which is commonly used in laser applications, a single-wavelength AR coating would be designed to reduce the amount of reflection at that specific wavelength. This can be achieved by depositing a thin film of a material with a refractive index that is lower than the refractive index of the substrate onto the surface of the substrate.

 

Coligh’s stock standard single wavelength AR coating protective windows 808nm:

• Type: One side AR coating
• Transmission: 808nm>99%
• Angle of incidence: 0°
• Working wavelength: Single wavelength between 400-1500nm
• Thickness: 1.0mm, 1.1mm, 0.5mm, 0.7mm
• Surface quality: 80/50, 60/40
• Size: smaller than 100*100mm

Custom option:

• Transmission and reflect ratio: Depend on client’s request
• Working wavelength: according to client’s request
• Material and thickness: according to client’s request
• Surface quality: 40/20 is in option
• Size: Any size round or square smaller than 100*100mm