Wavefront reversal technique for self-referencing collimation testing
We present a wavefront reversal technique to produce a dual-field fringe pattern for self-referencing collimation testing in wedge-plate lateral-shear interferometry. The method requires only a suitably placed cubic beam splitter to produce two replicas of the fringe field formed by the wedge-plate...
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| Main Authors: | , |
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| Format: | Article |
| Published: |
Optical Society of America
2010
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/15231/ |
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| Summary: | We present a wavefront reversal technique to produce a dual-field fringe pattern for self-referencing collimation testing in wedge-plate lateral-shear interferometry. The method requires only a suitably placed cubic beam splitter to produce two replicas of the fringe field formed by the wedge-plate lateral-shear interferometer. One of the replicas has a fringe pattern that is the reverse of the other. With these two fringe fields, the collimation testing has a built-in reference, and the detection sensitivity is twice that of a single-wedge-plate technique. (C) 2010 Optical Society of America |
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