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Related Experiment Video

Updated: Jan 19, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

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Wavefront-shaping-based pattern regeneration through the scattering medium.

Ming Zhao, Huai Wang, Zhiming Tian

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |September 11, 2019
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a wavefront-shaping method to generate user-specified patterns through strong scattering media. This technique successfully reconstructs patterns beyond the limitations of transparent samples, enabling new applications in optics.

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    Area of Science:

    • Optics and Photonics
    • Wave Phenomena
    • Coherent Control

    Background:

    • Generating specific light patterns through scattering media is challenging, typically limited to weakly scattering or transparent samples.
    • Strong scattering media randomize light, making pattern reconstruction difficult.

    Purpose of the Study:

    • To present a wavefront-shaping approach for generating user-specified patterns through strong scattering media.
    • To demonstrate the feasibility of reconstructing arbitrary patterns, not just focused spots, after scattering.

    Main Methods:

    • Utilized wavefront shaping to control light propagation through a scattering medium.
    • Computed virtual transmission matrices by convolving transmission matrices with a virtual input wavefront.
    • Employed a phase-only spatial light modulator for experimental calibration and pattern generation.

    Main Results:

    • Successfully regenerated user-specified patterns after a strong scattering medium.
    • Demonstrated that the generated pattern is the square of the modulus of the virtual input wavefront.
    • The method is independent of the scattering medium's memory effect.

    Conclusions:

    • The proposed wavefront-shaping method effectively generates user-specified patterns through strong scattering media.
    • This technique overcomes previous limitations and offers potential applications in structured light illumination and coherent control.