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Bubble optics: upward emerging ray paths.

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    Light scattering by floating bubbles is explained using geometrical optics. Researchers analyzed ray paths and caustic evolution for bubbles of various sizes, relevant for climate science and remote sensing.

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    Area of Science:

    • Atmospheric optics
    • Climate science
    • Remote sensing

    Background:

    • Light scattering by floating bubbles is a common phenomenon.
    • Understanding this scattering is crucial for climate science and remote sensing applications.

    Purpose of the Study:

    • To analyze light scattering in the upward hemisphere for floating bubbles.
    • To investigate the geometrical optics (GO) approximation for various bubble sizes and incident light angles.

    Main Methods:

    • Utilized numerical and analytical caustic theory.
    • Applied geometrical optics (GO) approximation for plane wave incidence.
    • Examined isolated floating bubbles of various sizes.

    Main Results:

    • Identified and discussed key ray paths responsible for light scattering.
    • Explained the evolution of caustics observed on a screen near the bubble.
    • Validated findings using both numerical and analytical methods.

    Conclusions:

    • The study provides a detailed analysis of light scattering by floating bubbles.
    • The findings contribute to a better understanding of optical phenomena relevant to climate and remote sensing.