Beam Dynamics in PT Symmetric Optical Lattices

Overview

Journal Phys Rev Lett

Publisher American Physical Society

Specialty Biophysics

Date 2008 Mar 21

PMID 18352189

Citations 84

Authors

K G Makris

R El-Ganainy

D N Christodoulides

Z H Musslimani

Affiliations

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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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