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    Area of Science:

    • Photonics
    • Integrated Optics
    • Plasmonics

    Background:

    • Developing efficient polarizers is crucial for optical communication systems.
    • Existing plasmonic devices often face challenges with CMOS compatibility and broad wavelength operation.
    • Hybrid plasmonic waveguides (HPWs) offer a promising platform for compact photonic integrated circuits.

    Purpose of the Study:

    • To numerically analyze a novel CMOS-compatible plasmonic TE-pass polarizer.
    • To demonstrate the device's functionality across the O, E, S, C, L, and U optical communication bands.
    • To investigate the impact of a segmented metal design on mode propagation.

    Main Methods:

    • Numerical analysis using 3D Finite-Difference Time-Domain (FDTD) simulations.
    • Design based on an integrated hybrid plasmonic waveguide (HPW) with a segmented metal structure.
    • Evaluation of device performance based on polarization extinction ratio and insertion loss.

    Main Results:

    • The proposed polarizer achieves polarization extinction ratios better than 20 dB.
    • Insertion losses are less than 1.7 dB across all analyzed optical communication bands.
    • The segmented metal design effectively blocks the TM mode while allowing the TE mode to propagate.

    Conclusions:

    • The segmented metal HPW polarizer is a viable solution for broadband, CMOS-compatible optical filtering.
    • This design can be integrated into complex plasmonic and silicon photonic circuits.
    • The device offers high performance suitable for next-generation optical communication networks.