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    Area of Science:

    • Electromagnetics
    • Diffraction Optics
    • Wave Propagation

    Background:

    • Accurate methods for tracking Gaussian beams on diffraction gratings were previously established.
    • Understanding beam-grating interactions is crucial for developing advanced electromagnetic systems.

    Purpose of the Study:

    • To investigate the spatial modifications of a fundamental Gaussian beam interacting with rectangular and sinusoidal gratings.
    • To analyze the influence of various incident beam parameters on these interactions.

    Main Methods:

    • Utilized a previously developed accurate tracking method for Gaussian beams.
    • Simulated and analyzed beam propagation through defined grating structures.

    Main Results:

    • Identified distinct effects of parameters such as waist radius, frequency, incident angle, polarization, and grating depth on spatial modifications.
    • Quantified the impact of these parameters on beam behavior.

    Conclusions:

    • The findings provide a comprehensive understanding of Gaussian beam-grating interactions.
    • This research is valuable for the design and optimization of millimeter-wave electromagnetic systems, including gyrotron component measurements.