15 March 2016 Phase shifting in the spatial frequency domain
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We present a simple mathematical method for phase shifting that overcomes some phase shift errors and limitations of commonly used methods. The method is used to generate a sequence of phase-shifted interferograms from a single interferogram. The generated interferograms are employed to reconstruct the wavefront aberrations, as an application. The approach yields results with only very small deviations compared to both simulated wavefront aberrations, including the first 25 Zernike polynomials (0.05%) and those measured with a Shack-Hartmann sensor (0.5%).
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Roghayeh Yazdani, Roghayeh Yazdani, Sebastian Petsch, Sebastian Petsch, Hamid Reza Fallah, Hamid Reza Fallah, Morteza Hajimahmoodzadeh, Morteza Hajimahmoodzadeh, Hans Zappe, Hans Zappe, } "Phase shifting in the spatial frequency domain," Optical Engineering 55(3), 034104 (15 March 2016). https://doi.org/10.1117/1.OE.55.3.034104 . Submission:

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