Random phase-shifting interferometry without accurately controlling or calibrating the phase shifts.

Abstract

A random phase-shifting interferometry insensitive to environmental noises is proposed. The relationship between intensity and phase in each pixel is obtained from a large amount of phase-shifting interferograms. In the phase-solving algorithm, the phase shift step length is not taken as a parameter, but the temporal intensity maximum and minimum in each… (More)

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@article{Hao2009RandomPI, title={Random phase-shifting interferometry without accurately controlling or calibrating the phase shifts.}, author={Qun Hao and Qiudong Zhu and Yao Hu}, journal={Optics letters}, year={2009}, volume={34 8}, pages={1288-90} }