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Fast and scalable algorithm for the simulation of multiple Mie scattering in optical systems.

Oliver Kalthoff, Ronald Kampmann, Simon Streicher

    Applied Optics
    |July 14, 2016
    PubMed
    Summary

    Simulating light propagation requires many photons. Using graphics processing units (GPUs) and Mie scattering, this study shows a scalable programming approach for accurate optical simulations without code changes.

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    Area of Science:

    • Optical physics
    • Computational physics

    Background:

    • Monte Carlo simulations are crucial for modeling light propagation in optical systems.
    • Achieving high statistical accuracy necessitates processing a vast number of photons, posing computational challenges.

    Purpose of the Study:

    • To investigate a scalable programming paradigm for simulating light propagation in turbid media.
    • To leverage the parallel processing capabilities of graphics processing units (GPUs) for enhanced simulation efficiency.

    Main Methods:

    • Experimental validation based on classical Mie scattering theory.
    • Implementation of a concurrent and scalable programming model for general-purpose GPUs.

    Main Results:

    • Demonstrated the independence of photon propagation through turbid media as a basis for parallelization.
    • Showcased a programming paradigm that allows for simulation of increasingly complex optical systems by utilizing additional GPU processors without code modification.

    Conclusions:

    • The proposed concurrent and scalable programming approach on GPUs is effective for accurate Monte Carlo simulations of light propagation.
    • This method ensures future-proofing of optical system simulations, accommodating growing computational demands and system complexity.