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Creators/Authors contains: "DeMars, L"

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  1. ; ; ; (, Applied optics)
    A vibration-insensitive, single-shot phase-calibration method for phase-only spatial light modulators (SLM) is reported. The proposed technique uses a geometric phase lens to forma phase-shifting radial shearing interferometer to enable common-path measurements. This configuration has several advantages: (a) unlike diffraction-based SLM calibration techniques, this technique is robust against intensity errors due to misalignment; (b) unlike twobeam interferometers, this technique offers a high environmental stability; and (c) unlike intensity-based methods, the phase-shifting capability provides a phase uncertainty routinely in the order of 2=100. The experimental results show a significantly higher accuracy when compared to the diffraction-based approaches. © 2020 Optical Society of America https://doi.org/10.1364/AO.383610 
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