Article ID Journal Published Year Pages File Type
852601 Optik - International Journal for Light and Electron Optics 2008 5 Pages PDF
Abstract

The theory of optical subdivision techniques of dual-frequency laser interferometers is stated. And a novel optical subdivision technique is proposed originally to enhance resolution of a commercial interferometer by adding some corner-cubes. Then the performance of the interferometer is tested. The interferometer resolution of 1.24 nm and the average error of below 2 nm are achieved by using the technique. The most novel of the optical subdivision technique is without λ/4 plates. It is less sensitive to environmental changes, it has prodigious potential to improve resolution farther and it can reduce polarization mixing error.

Related Topics
Physical Sciences and Engineering Engineering Engineering (General)
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