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==== Mirrors ==== | ==== Mirrors ==== | ||
- | The 3 mirrors used in the optical tower are from OptoSigma (part no. 034-0185 and ). These mirrors are made of a borosilicate glass (BK7) and are designed specifically for KrF laser use at 45 degrees incidence. When configured in this way, the reflectance should be > 99%. The mirrors on the lowest two tiers of the optics tower are arranged at this angle of incidence. | + | The 3 mirrors used in the optical tower are from OptoSigma (part no. [[http:// |
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==== Lenses ==== | ==== Lenses ==== | ||
The two focusing lenses (one for each chamber) used are of the plano-convex type, and are made of UV grade fused silica. | The two focusing lenses (one for each chamber) used are of the plano-convex type, and are made of UV grade fused silica. |