Solid Glass Retroreflectors

The solid glass prisms are produced from fused silica Homosil or Suprasil and have sharp cube edges and surface flatness of λ/10. The deviation error is under 2". The shape of these prisms is either hexagonal or circular.

Coatings

• Antireflection of the entrance faces with multilayer coatings for the visible. Minimal residual reflectivity about 0.2%  → STR 1
• Antireflection of the entrance faces with double-layer coatings for a selected wavelength. Minimal residual reflectivity about 0.1%  → STR 2
• Reflecting surfaces coated with evaporated high-reflectivity metallic film to reduce the change of polarization → on request

Available on special order

• Prisms with other dimensions  → on request
• Prisms with lower accuracies  → on request
• The prisms can also be supplied mounted in a holder with or without a mounting post.  → on request
• Hollow retroreflectors consisting of three flat mirrors of glass or Zerodur mounted by optical contact or cement.  → on request