AR Coated Windows, UV-VIS-NIR N-BK7 & Fused Silica Windows Overview: While uncoated windows have typical losses of about 4% per surface, the Anti-reflective coatings reduce this to Ravg < 0.5%. Star Optic provides various AR Coated Windows use from UV, VIS to NIR wavelength range. For your specific wavelength, please feel free to discuss with us. General Specifications of AR Coated Windows:
Material | N-BK7, UV Fused Silica | Wavefront Distortion | <λ/4@633nm per 25mm (Standard) <λ/10@633nm per 25mm (High Precision) | Surface Quality | 60/40 scratch-Dig (Standard) 20/10 Scratch-Dig (high precision) | Dimension Tolerance | +0/-0.2mm | Thickness Tolerance | ±0.2mm | Parallelism | <1 arc minute (standard) <10 arc seconds (high precision) | Clear Aperture | >90% | Chamfer | Protective<0.5mmx45° | Coating | Narrow band: R<0.25% per surface, AOI=0deg Broadband: R<0.5% per surface, AOI=0deg | Damage Threshold | BK7: >5J/cm2, 20ns, 20Hz, @1064nm UVFS: >10J/cm2, 20ns, 20Hz, @1064nm |
Standard Products of AR Coated Windows: Part No. | Material | Diameter (mm) | Thickness (mm) | Coating | ARW1203-260-270 | UVFS | 12.7 | 3.0 | 260-270 | ARW2506-260-270 | UVFS | 25.4 | 6.35 | 260-270 | ARW5006-260-270 | UVFS | 50.8 | 6.35 | 260-270 | ARW1203-351-355 | UVFS | 12.7 | 3.0 | 351-355 | ARW2506-351-355 | UVFS | 25.4 | 6.35 | 351-355 | ARW5006-351-355 | UVFS | 50.8 | 6.35 | 351-355 | ARW1203-400-700 | N-BK7 | 12.7 | 3.0 | 400-700 | ARW2506-400-700 | N-BK7 | 25.4 | 6.35 | 400-700 | ARW5006-400-700 | N-BK7 | 50.8 | 6.35 | 400-700 | ARW1203-524-532 | N-BK7 | 12.7 | 3.0 | 524-532 | ARW2506-524-532 | N-BK7 | 25.4 | 6.35 | 524-532 | ARW5006-524-532 | N-BK7 | 50.8 | 6.35 | 524-532 | ARW1203-630-660 | N-BK7 | 12.7 | 3.0 | 630-660 | ARW2506-630-660 | N-BK7 | 25.4 | 6.35 | 630-660 | ARW5006-630-660 | N-BK7 | 50.8 | 6.35 | 630-660 | ARW1203-650-1100 | N-BK7 | 12.7 | 3.0 | 650-1100 | ARW2506-650-1100 | N-BK7 | 25.4 | 6.35 | 650-1100 | ARW5006-650-1100 | N-BK7 | 50.8 | 6.35 | 650-1100 | ARW1203-780-810 | N-BK7 | 12.7 | 3.0 | 780-810 | ARW2506-780-810 | N-BK7 | 25.4 | 6.35 | 780-810 | ARW5006-780-810 | N-BK7 | 50.8 | 6.35 | 780-810 | ARW1203-1047-1064 | N-BK7 | 12.7 | 3.0 | 1047-1064 | ARW2506-1047-1064 | N-BK7 | 25.4 | 6.35 | 1047-1064 | ARW5006-1047-1064 | N-BK7 | 50.8 | 6.35 | 1047-1064 |
Coating Graphs of AR Coated Windows: 260-270nm AR Coated Window
 | 351-355nm AR Coated Window
 | 400-700nm AR Coated Window
 | 524-532nm AR Coated Window
 | 630-660nm AR Coated Window
 | 650-1100nm AR Coated Window
 | 780-810nm AR Coated Window
 | 1047-10640nm AR Coated Window
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