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We study defect and surface states in PT-symmetric optical mesh lattices. Such localized states can emerge in both the real and complex domain and can exhibit peculiar properties that are otherwise unattainable in Hermitian systems.
We investigate the acceleration dynamics of non-paraxial Bessel beams. We show that this acceleration behavior can persist even in the presence of evanescent components. Our study can be useful in plasmonic and other sub-wavelength settings.
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