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    A novel Hartmann-Shack wavefront sensor uses a digital micromirror device for serial scanning, offering reconfigurable apertures and high-speed potential without crosstalk. This innovation enhances optical wavefront sampling for adaptive optics systems.

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    Area of Science:

    • Optical Engineering
    • Adaptive Optics
    • Metrology

    Background:

    • Traditional Hartmann-Shack wavefront sensors utilize lenslet arrays for parallel wavefront sampling.
    • Existing methods can be limited by crosstalk and fixed sampling configurations.

    Purpose of the Study:

    • To introduce a novel digital Hartmann-Shack wavefront sensor.
    • To enable serial sampling of optical wavefronts using a digital micromirror device and a single lens.

    Main Methods:

    • Numerical analysis and experimental validation of the digital Hartmann-Shack sensor.
    • Utilizing a deformable mirror in closed-loop adaptive optics.
    • Generating monochromatic aberrations with ophthalmic trial lenses.

    Main Results:

    • The new sensor demonstrates serial sampling capabilities.
    • It is free of crosstalk and offers a reconfigurable aperture.
    • Potential for kilohertz operational speed was identified.

    Conclusions:

    • The digital micromirror device-based Hartmann-Shack sensor provides a flexible and high-performance alternative.
    • This technology can improve wavefront sensing accuracy and adaptability in optical systems.