@inbook{bebe6c800b45485c9fd082506d9fd96f,
title = "Non-hermitian optical waveguide couplers",
abstract = "We discuss the PT symmetry effects in non-Hermitian waveguiding geometries starting from a classical example of a two-core coupler with gain and loss. We demonstrate that a nonlinear response can break the PT symmetry in a coupler, and discuss the regimes of parametric amplification and nonlocality associated with such systems. Then, we analyse non-Hermitical trimers and also a PT-symmetric system embedded into an array of waveguides. Finally, we demonstrate the existence of nontrivial modes in non-Hermitian waveguiding structures with asymmetric layers of gain and loss.",
author = "Suchkov, {Sergey V.} and Sukhorukov, {Andrey A.} and Kivshar, {Yuri S.}",
note = "Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2018.",
year = "2018",
doi = "10.1007/978-981-13-1247-2_11",
language = "English",
series = "Springer Tracts in Modern Physics",
publisher = "Springer Verlag",
pages = "277--300",
booktitle = "Springer Tracts in Modern Physics",
address = "Germany",
}