Standard BBAR Coating Reflectance Specifications

λ/4 MgF2: The simplest AR coating available is a λ/4-thick MgF2 layer centered at 550nm (with refractive index of 1.38 at 550nm). MgF2 coating is ideal for broadband applications, though its performance varies depending on the glass substrate type.

VIS 0° and VIS 45°: The VIS 0° (for 0° angle of incidence) and VIS 45° (for 45° angle of incidence) coatings provide optimal transmission across 425-675nm, reducing average reflectance to 0.4% and 0.75% respectively. For visible light applications, VIS 0° AR coating outperforms MgF2.

VIS-NIR: This visible/near-infrared broadband AR coating is specially optimized to achieve maximum transmission (>99%) in the NIR region.

Telecom-NIR: A specialized broadband AR coating designed for popular telecom wavelengths between 1200-1600nm.

UV-AR and UV-VIS: These ultraviolet coatings are applied to our UV fused silica lenses and windows to enhance their performance in the UV spectrum.

NIR I and NIR II: The near-infrared I and II broadband AR coatings deliver exceptional performance at NIR wavelengths for fiber optics, laser diode modules, and LED lighting applications.

Coating DescriptionSpecifications
λ/4 MgF₂@550nmR_≤1.75%@400-700nm
UV-AR [250-425nm]R。≤1.0%@250-425nm
R..≤0.75%@250-425nm
R..≤0.5%@370-420nm
Laser UV-VIS [250-532nm]
UV-VIS[250-700nm]		R_≤1.25%@250-532nm
R_≤1.0% @350-450nm
R_≤1.5%@250-700nm
VIS-EXT[350-700nm]R_<0.5%@350-700nm
VIS-NIR[400-1000nm]RA≤0.25%@880nm
R_≤1.25%@400-870nm
R_≤1.25%②890-1000nm
Laser VIS-NIR[500-1090nm]R_≤1%@500-1090nm
VIS0°[425-675mm]
VIS 45°[425-675nm]		R_≤0.4%@425-675nm
R_≤0.75%@425-675mm
YAG-BBAR [500-1100mm]RA<0.25%@532nm
R。<0.25%@1064mm
R_<1.0%@ 500-1100nm
NIRI[600-1050nm]R_≤0.5%@600-1050nm
NIR Ⅱ[750-1550nm]R_≤1.5%@750-800nm
R_≤1.0%@800-1550nm
R_≤0.7%@750-1550mm
Laser NIR[1030-1550nm]R_≤0.7%@1030-1550nm
2μm BBAR [1900-2100mm]R.<0.5%@1900nm-2100nm
R_<0.25%@2000nm-2100nm
BBAR(3000-5000nm)
BBAR(3000-12000nm)
BBAR(8000-12000nm)		R_<3.0%@3000-5000nm
R。<3.0%@3000-12000nm
R_<3.0%②8000-12000nm