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    Area of Science:

    • Optics and Photonics
    • Surface Science
    • Computational Electromagnetics

    Background:

    • Shadowing and masking significantly impact light interaction with rough surfaces.
    • Accurate modeling of light attenuation is crucial for optical metrology and material characterization.
    • V-grooved surfaces present complex scattering phenomena due to their geometry.

    Purpose of the Study:

    • To simulate and analyze shadowing and masking effects in V-grooved rough surfaces.
    • To investigate the influence of polarization (TE and TM), wavelength, and viewing geometry on light attenuation.
    • To enhance the precision of light attenuation measurements on complex V-grooved surfaces.

    Main Methods:

    • Utilized Blinn's theory to model V-grooved surfaces as symmetric, elongated V-shaped groove cavities.
    • Performed numerical analysis incorporating polarization, wavelength, tilt, slant, and material properties.
    • Simulated interactions of transverse electric (TE) and transverse magnetic (TM) polarized plane waves.

    Main Results:

    • Quantified the impact of shadowing and masking phenomena on light attenuation.
    • Demonstrated the dependence of light attenuation on polarization, wavelength, and geometric parameters.
    • Achieved enhanced precision in calculating light attenuation for V-grooved rough surfaces.

    Conclusions:

    • The simulation accurately captures light attenuation phenomena on V-grooved surfaces.
    • Understanding shadowing and masking is key to precise optical measurements on rough surfaces.
    • The developed model offers improved accuracy for characterizing complex surface geometries.