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    We developed methods to rotate 3D light fields from holograms with minimal distortion. This technique allows for precise tilting of holographic images in the focal plane.

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    Area of Science:

    • Optics and Photonics
    • Holography
    • Computer-Generated Holograms

    Background:

    • Computer-generated holograms (CGHs) are essential for creating arbitrary light fields.
    • Controlling the orientation of holographic images is crucial for various applications.
    • Existing methods for rotating holographic images often suffer from distortion.

    Purpose of the Study:

    • To develop a robust method for three-dimensional rotation of arbitrary light fields generated by CGHs.
    • To enable precise tilting of holographic images in the focal plane with minimized distortion.
    • To present and validate two distinct approaches for hologram rotation.

    Main Methods:

    • Incorporation of an additional phase function into the kinoform.
    • Implementation of the Scheimpflug method for hologram rotation.
    • Development and application of a novel coordinate transformation method for hologram rotation.

    Main Results:

    • Successfully demonstrated three-dimensional rotation of arbitrary light fields.
    • Achieved tilted holographic images in the focal plane with significantly minimized distortion.
    • Experimental validation confirmed the effectiveness of both the Scheimpflug and coordinate transformation methods.

    Conclusions:

    • The proposed methods provide a reliable basis for the three-dimensional rotation of computer-generated holographic light fields.
    • The added phase function effectively controls image tilting while preserving image quality.
    • These techniques offer enhanced control over holographic image orientation for advanced applications.