https://doi.org/10.1140/epjd/e2015-60243-0
Regular Article
Light propagation inside ‘cavity’ formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices
1 Faculty of Natural Sciences and Mathematics, University of Priština, Lole Ribara 29, 38220 Kosovska Mitrovica, Serbia
2 Faculty of Technology, University of Niš, Bulevar Osloboďenja 124, 16000 Leskovac, Serbia
3 Faculty of Electronic Engineering, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, Serbia
4 Vinča Institute of Nuclear Sciences, University of Belgrade, P.O.B. 522, Belgrade, Serbia
a
e-mail: sandram@vinca.rs
Received: 21 April 2015
Received in final form: 6 July 2015
Published online: 11 September 2015
Light propagation through composite photonic lattice containing a cavity bounded by the interface between two structurally different linear lattices and on-site nonlinear defect in one of them is investigated numerically. We find conditions under which dynamically stable bounded cavity modes can exist. We observe various cavity localized modes such as: single-hump, multi-hump, and moving breathing modes. Light propagation obstructions are phenomenologically related to the Fano resonances. Presented numerical findings may lead to interesting applications, such as blocking, filtering, and transporting of light beams through the optical medium.
Key words: Optical Phenomena and Photonics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015
