Modifying a Shear Interferometer to Obtain a Neutral Reference Beam*
- 1 February 1971
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 61 (2) , 172-175
- https://doi.org/10.1364/josa.61.000172
Abstract
An absolute interferometer may be obtained from a differential-shear interferometer if a very small pinhole stop is introduced into one of the two spatially separated point-source images that the differential-shear interferometer produces. The technique and one example are discussed.Keywords
This publication has 4 references indexed in Scilit:
- Higher-Order Lloyd InterferometerApplied Optics, 1970
- Improving the Accuracy of Visual Interferometric Angular MeasurementsApplied Optics, 1969
- A Lateral Wavefront Shearing Interferometer with Variable ShearApplied Optics, 1967
- Precise Measurement of PlanenessApplied Optics, 1967