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. 2008 Mar 14;100(10):103904.
doi: 10.1103/PhysRevLett.100.103904. Epub 2008 Mar 13.

Beam dynamics in PT symmetric optical lattices

K G Makris  1 , R El-Ganainy, D N Christodoulides, Z H Musslimani
Affiliations

Beam dynamics in PT symmetric optical lattices

K G Makris et al. Phys Rev Lett. .

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.

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