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    Area of Science:

    • Metamaterials
    • Optics
    • Condensed Matter Physics

    Background:

    • Nanosphere dispersed liquid crystal (NDLC) metamaterials exhibit unique electromagnetic properties.
    • Characterization in the near-infrared (IR) spectral region is crucial for understanding their behavior.

    Purpose of the Study:

    • To characterize NDLC metamaterials as indefinite media.
    • To design and analyze an electro-optic effect for controlling electromagnetic wave propagation.

    Main Methods:

    • Effective medium theory applied to anisotropic metamaterials.
    • Finite element simulations to analyze wave propagation.
    • Experimental characterization in the near-IR spectral region.

    Main Results:

    • NDLC metamaterials function as indefinite media with opposite signs for effective permittivity components.
    • Demonstration of an electric-field-driven switch between normal refraction, negative refraction, and reflection.
    • Validation of the designed electro-optic effect through detailed analysis and simulations.

    Conclusions:

    • NDLC metamaterials offer tunable optical properties.
    • The demonstrated electro-optic effect provides a novel method for controlling light.
    • Potential applications in optical switching and signal processing.