Off-axis cyclic radial shearing interferometer for measurement of centrally blocked transient wavefront.

@article{Ling2013OffaxisCR,
  title={Off-axis cyclic radial shearing interferometer for measurement of centrally blocked transient wavefront.},
  author={Tong Ling and Dong Liu and Yongying Yang and Lei Sun and Chao Tian and Yibing Shen},
  journal={Optics letters},
  year={2013},
  volume={38 14},
  pages={
          2493-5
        }
}
An off-axis cyclic radial shearing interferometer (OCRSI) to test a centrally blocked transient wavefront is proposed. Based on the standard cyclic radial shearing interferometer (CRSI), the OCRSI consists of a beam splitter, two folding mirrors, and a Galilean telescope. With the same but reversal tilt introduced to the two mirrors in OCRSI, the shearing interferogram can be obtained even when the central part of the test aperture is blocked. An improved wavefront retrieval method for OCRSI is… CONTINUE READING
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