Photorefractive shearing interferometer |
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| Authors: | L. Z. Cai Q. Liu Y. R. Wang X. L. Yang |
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| Affiliation: | Department of Optics, Shandong University, Jinan 250100, People's Republic of, China |
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| Abstract: | A novel method of obtaining shearing interferogram by slightly moving the crystal in a photorefractive interferometer is proposed. This method can measure the phase of an object itself instead of its diffraction field, and it is easy to realize continuously changeable shearing distance in any lateral direction and introduce carrier fringes at the same time. Both the theoretical analysis and experimental verification are given. |
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| Keywords: | Shearing interferometer Photorefractive crystals Optical testing Aberrations |
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