Testing the Criterion Wavefront Diffracted by Point Diffraction Interferometer

Jing, 邵晶 Shao; Dong-mei, 马冬梅 Ma

doi:10.3788/cjl201138.0508003

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2016

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“…In section 5, we impose vibration, intensity fluctuation and phase-shift error into the comparison experiments to demonstrate the validity of this approach. This in situ method can also be applied into an phase shifting interferometer with high precision, such as point diffraction interferometer [15,16].…”

Section: Discussionmentioning

confidence: 99%

Anin situmethod for diagnosing phase shifting interferometry

Shao

Zhang

et al. 2016

J. Inst.

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Hence a brief and effective method is necessary to satisfy the real-time testing. In this paper, mathematical solutions for errors were deduced from the difference of intensity patterns. Based on the diversity of error distributions, an effective method for distinguishing and diagnosing the error sources is proposed and verified by an elaborative designed simulation. In the actual comparison experiment, vibration, phase-shift error and intensity fluctuation were imposed to demonstrate this method. The results showed that this method can be applied into the real-time measurement and provide an in situ diagnosing technique.

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Section: Discussionmentioning

confidence: 99%