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    Area of Science:

    • Photonics
    • Optical Computing
    • Materials Science

    Background:

    • Anisotropic photonic time crystals (APTCs) offer unique light manipulation properties.
    • Implementing logic operations and encoding in photonic systems is crucial for advanced computing.

    Purpose of the Study:

    • To propose and demonstrate a novel configuration using APTCs for a 2-bit binary encoder and logic functions.
    • To explore the potential of APTCs in phase-encryption systems.

    Main Methods:

    • Exploiting the angle-sensitive wave amplification effect in APTCs to create a tunable angle magnification window (AMW).
    • Configuring NOR and AND logic functions and a 2-bit binary encoder by controlling transmittance changes.
    • Numerical simulations using the transfer matrix method and finite-difference time-domain (FDTD) method for verification.

    Main Results:

    • Demonstrated a tunable AMW in the angular domain by adjusting APTC parameters.
    • Successfully implemented NOR and AND logic functions and a 2-bit binary encoder.
    • Constructed a phase-encryption system based on the APTC encoder and logic device.

    Conclusions:

    • APTCs provide a viable platform for parallel implementation of encoding structures and logic design.
    • The proposed approach paves the way for advanced photonic logic devices and information encryption technologies.