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    Area of Science:

    • Plasmonics and Nanophotonics
    • Metasurface Engineering

    Background:

    • Plasmon-induced transparency (PIT) in nanostructures is a well-studied phenomenon.
    • Existing metasurfaces lack the ability to dynamically tune the number of transparency windows and switch them off.

    Purpose of the Study:

    • To theoretically investigate and demonstrate a dynamically tunable, multichannel PIT at optical frequencies.
    • To achieve sequential control over the number of transparency windows in a metasurface.

    Main Methods:

    • Exploiting in-plane destructive interference between bright and dark dipolar resonances in coupled plasmonic nanobar topologies.
    • Utilizing sequential polarization-selective multispectral operation.

    Main Results:

    • Demonstrated a tunable PIT with sequential control over the number of transparency windows, varying from 3 down to 0.
    • Achieved polarization-selective multispectral operation for dynamic control of PIT channels.

    Conclusions:

    • The developed nanostructure offers a promising route for active manipulation of PIT.
    • The findings pave the way for multifunctional dynamic nanophotonics devices with tunable optical properties.