Browsing by Subject "Mode formation"

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    Two-dimensional complex parity-time-symmetric photonic structures
    (American Physical Society, 2015-02) Turduev, M.; Botey, M.; Giden, I.; Herrero, R.; Kurt, H.; Özbay, Ekmel; Staliunas, K.
    We propose a simple realistic two-dimensional complex parity-time-symmetric photonic structure that is described by a non-Hermitian potential but possesses real-valued eigenvalues. The concept is developed from basic physical considerations to provide asymmetric coupling between harmonic wave components of the electromagnetic field. The structure results in a nonreciprocal chirality and asymmetric transmission between in- and out-coupling channels into the structure. The analytical results are supported by a numerical study of the Bloch-like mode formations and calculations of a realistic planar semiconductor structure. © 2015 American Physical Society.