Observation of Asymmetric Transport in Structures with Active Nonlinearities

    Authors

    N. Bender; S. Factor; J. D. Bodyfelt; H. Ramezani; D. N. Christodoulides; F. M. Ellis;T. Kottos

    Comments

    Authors: contact us about adding a copy of your work at [email protected]

    Abbreviated Journal Title

    Phys. Rev. Lett.

    Keywords

    NON-HERMITIAN HAMILTONIANS; ALL-OPTICAL DIODE; WAVE-GUIDE; SYMMETRY; LIGHT; Physics, Multidisciplinary

    Abstract

    A mechanism for asymmetric transport which is based on parity-time-symmetric nonlinearities is presented. We show that in contrast to the case of conservative nonlinearities, an increase of the complementary conductance strength leads to a simultaneous increase of asymmetry and transmittance intensity. We experimentally demonstrate the phenomenon using a pair of coupled Van der Pol oscillators as a reference system, each with complementary anharmonic gain and loss conductances, connected to transmission lines. An equivalent optical setup is also proposed.

    Journal Title

    Physical Review Letters

    Volume

    110

    Issue/Number

    23

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    5

    WOS Identifier

    WOS:000320115000010

    ISSN

    0031-9007

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