Abstract
In this chapter we describe how PT -symmetric systems can be implemented in a passive fashion, that is, without using gain, by employing modulated waveguide structures. To this end, we present the underlying theoretical ideas as well as the details of the implementation of such passive structures. As an application, we experimentally demonstrate the transition from ballistic to diffusive transport in passive PT -symmetric waveguide arrays.
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CITATION STYLE
Eichelkraut, T., Weimann, S., Kremer, M., Ornigotti, M., & Szameit, A. (2018). Passive PT -Symmetry in laser-written optical waveguide structures. In Springer Tracts in Modern Physics (Vol. 280, pp. 123–153). Springer Verlag. https://doi.org/10.1007/978-981-13-1247-2_5
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