| CO2 Protective Window | ||||||
| P/N | Diameter | Thickness | Material | Coating | ||
| mm | inch | mm | inch | |||
| W-10.6-12-2 | 12 | 0.47 | 2 | 0.08 | Znse | AR@10.6um |
| W-10.6-12-3 | 12 | 0.47 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-12.7-2 | 12.7 | 0.50 | 2 | 0.08 | Znse | AR@10.6um |
| W-10.6-12.7-2.5 | 12.7 | 0.50 | 2.5 | 0.10 | Ge | BR AR@8-14um |
| W-10.6-15-2 | 15 | 0.59 | 2 | 0.08 | Znse | AR@10.6um |
| W-10.6-16-3 | 15 | 0.59 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-15-4 | 16 | 0.63 | 3 | 0.12 | Znse/Ge | NONE |
| W-10.6-15.2-3 | 15.2 | 0.60 | 3 | 0.12 | Znse | AR@10.6um |
| BRW-10.6-18-2 | 18 | 0.71 | 2 | 0.08 | Ge | BR AR@8-14um |
| W-10.6-18-3 | 18 | 0.71 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-19-2 | 19 | 0.75 | 2 | 0.08 | Znse/Ge | NONE |
| W-10.6-19-3 | 19 | 0.75 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-20-2 | 20 | 0.79 | 2 | 0.08 | Znse/Ge | NONE |
| BRW-10.6-20-3 | 20 | 0.79 | 3 | 0.12 | Ge | BR AR@8-14um |
| W-10.6-23-3 | 23 | 0.91 | 3 | 0.12 | Znse/Ge | NONE |
| W-10.6-25-3C | 25 | 0.98 | 3 | 0.12 | Znse/Ge | NONE |
| W-10.6-25-4 | 25 | 0.98 | 3 | 0.12 | Chinese Znse | NONE |
| W-10.6-25.4-3 | 25.4 | 1.00 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-27.9-3 | 27.9 | 1.10 | 3 | 0.12 | Znse | AR@10.6um |
| W-D29.8-T11 | 29.8 | 1.17 | 11 | 0.43 | Znse/Ge | NONE |
| BRW-10.6-30-3 | 30 | 1.18 | 3 | 0.12 | Ge | BR AR@8-14um |
| W-10.6-38.1-3 | 38.1 | 1.50 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-38.1-4 | 38.1 | 1.50 | 4 | 0.16 | Znse | AR@10.6um&632nm |
| BRW-10.6-38.1-5 | 38.1 | 1.50 | 5 | 0.20 | Ge | BR AR@8-14um |
| W-10.6-50.8-3 | 50.8 | 2.00 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-50.8-4 | 50.8 | 2.00 | 4 | 0.16 | Znse | AR@10.6um |
| W-10.6-50.8-5 | 50.8 | 2.00 | 5 | 0.20 | Znse | AR@10.6um&632nm |
| BRW-10.6-63.5-4 | 63.5 | 2.50 | 4 | 0.16 | Ge | BR AR@8-14um |
| W-10.6-63.5-5 | 63.5 | 2.50 | 5 | 0.20 | Znse | AR@10.6um |
| W-10.6-63.5-6 | 63.5 | 2.50 | 6 | 0.24 | Znse | AR@10.6um |
| W-10.6-63.5-6 | 63.5 | 2.50 | 6 | 0.24 | Znse | AR@10.6um&632nm |
| BRW-10.6-63.5-9 | 63.5 | 2.50 | 9 | 0.35 | Ge | BR AR@8-14um |
| W-10.6-75-5 | 75 | 2.95 | 5 | 0.20 | Znse | AR@10.6um |
| W-10.6-75-6 | 75 | 2.95 | 6 | 0.24 | Znse | AR@10.6um |
| W-10.6-75-8 | 76.2 | 3.00 | 8 | 0.31 | Znse/Ge | NONE |
| BRW-10.6-75-9 | 75 | 2.95 | 9 | 0.35 | Ge | BR AR@8-14um |
| W-10.6-80-3C | 80 | 3.15 | 3 | 0.12 | Chinese Znse | AR@10.6um |
| W-10.6-80-3 | 80 | 3.15 | 3 | 0.12 | Znse | AR@10.6um |
| W-10.6-80-4 | 80 | 3.15 | 4 | 0.16 | Znse | AR@10.6um |
| W-10.6-101-5 | 101 | 3.98 | 5 | 0.20 | Znse | AR@10.6um |
| W-10.6-101-5.5 | 101 | 3.98 | 5.5 | 0.22 | Znse | AR@10.6um |
| W-10.6-150-10 | 150 | 5.91 | 10 | 0.39 | Znse | AR@10.6um |
Silicon, Germanium, GaAs and Znse are three popular and useful IR materials. Si can be used from 1.2 to 7um. It has peak performance in the 3-5 um region. Ge is ideal for thermal imaging applicons and is popular for its high refraction index at about 4.0 from 2 to 14um. Znse is commonly used in thermal resistance applications. Znse has wide usage in high power CO2 laser systerms.