Beam dynamics in PT symmetric optical lattices

    Authors

    K. G. Makris; R. El-Ganainy; D. N. Christodoulides;Z. H. Musslimani

    Comments

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    Abbreviated Journal Title

    Phys. Rev. Lett.

    Keywords

    COMPLEX PERIODIC POTENTIALS; NON-HERMITIAN HAMILTONIANS; EXCESS; QUANTUM-NOISE; REAL; EIGENVALUES; DIFFRACTION; CRYSTALS; SPECTRUM; MODES; LIGHT; Physics, Multidisciplinary

    Abstract

    The possibility of parity-time (PT) symmetric periodic potentials is investigated within the context of optics. Beam dynamics in this new type of optical structures is examined in detail for both one- and two-dimensional lattice geometries. It is shown that PT periodic structures can exhibit unique characteristics stemming from the nonorthogonality of the associated Floquet-Bloch modes. Some of these features include double refraction, power oscillations, and eigenfunction unfolding as well as nonreciprocal diffraction patterns.

    Journal Title

    Physical Review Letters

    Volume

    100

    Issue/Number

    10

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    4

    WOS Identifier

    WOS:000254024500027

    ISSN

    0031-9007

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