Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
852601 | Optik - International Journal for Light and Electron Optics | 2008 | 5 Pages |
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.
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Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Zhiping Zhang, Zhaogu Cheng, Zhaoyu Qin, Jianqiang Zhu,