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    Area of Science:

    • Optics and Photonics
    • Biophysics
    • Materials Science

    Background:

    • Liquid crystal spatial light modulators (SLMs) offer advanced control over light wavefronts.
    • Simultaneous optical manipulation and image processing are crucial for complex experiments.
    • Multi-wavelength holographic control presents unique challenges and opportunities.

    Purpose of the Study:

    • To demonstrate simultaneous holographic optical trapping and image processing using a single-phase diffraction pattern.
    • To exploit the multiorder phase shift capabilities of SLMs for distinct wavelength functionalities.
    • To achieve independent control over optical trapping and image processing channels.

    Main Methods:

    • Utilized a single-phase hologram displayed on a liquid crystal spatial light modulator (SLM).
    • Calculated diffraction patterns to independently shape optical traps at 785 nm.
    • Engineered double-helix point spread functions for image processing at 532 nm.
    • Exploited multiorder phase shifts for wavelength-specific light manipulation.

    Main Results:

    • Achieved simultaneous holographic optical trapping and optical image processing.
    • Demonstrated independent control over two distinct optical channels (785 nm trapping, 532 nm image processing).
    • Reported channel efficiencies of approximately 75% compared to ideal diffractive patterns.

    Conclusions:

    • The presented method enables versatile, simultaneous holographic functions using a single SLM.
    • This approach offers a significant advancement in integrated optical manipulation and processing systems.
    • The high efficiency and independence of the channels suggest broad applicability in microscopy and nanotechnology.