| 摘要 |
An interferometer structure is disclosed in which alignment problems are reduced by providing a special retaining structure for the transparent beamsplitter plates. In order to minimize distortion of the beamsplitter plates, the metal housing surfaces, against which they are held, are each coated with a material which has a very slippery and extremely flat surface engaging the surface of the respective beamsplitter plate. The preferred coating material is polytetrafluoroethylene. A glass tool (optically flat) is used during heating (and hardening) of the coating material, for the purpose of insuring an unusually flat coating surface.
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