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    Area of Science:

    • Optics
    • Wave Phenomena
    • Computational Physics

    Background:

    • Focusing light through disordered media is challenging due to scattering.
    • Existing methods for wavefront shaping have limitations in achieving high intensity enhancement.

    Purpose of the Study:

    • To propose and evaluate a simulated annealing algorithm for amplitude modulation to focus light through scattering media.
    • To compare the performance of the simulated annealing algorithm against existing amplitude control algorithms.

    Main Methods:

    • Utilized a 4096-segment controllable optical element to shape the incident wavefront.
    • Implemented a simulated annealing algorithm for optimizing amplitude modulation.
    • Experimentally compared the proposed algorithm with existing methods for focusing light through scattering media.

    Main Results:

    • Achieved a 73-fold enhancement in target signal intensity compared to the original output.
    • Demonstrated that the simulated annealing algorithm provides superior intensity enhancement.
    • The simulated annealing algorithm achieved the highest enhancement for a given number of optimization iterations.

    Conclusions:

    • The simulated annealing algorithm is an effective method for focusing light through disordered media.
    • This approach offers significant improvements in signal intensity enhancement over existing techniques.
    • The findings highlight the potential of advanced optimization algorithms in optical wavefront control.