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Engineering Fano resonances in discrete arrays | | Andrey E Miroshnichenko
; Yuri S Kivshar
; | | Date: |
31 Oct 2005 | | Journal: | Phys Rev E, 72 (5 Pt 2), 056611 | | Abstract: | We study transmission properties of discrete arrays composed of a linear waveguide coupled to a system of side defect states. This simple system can be used to model discrete networks of coupled defect modes in photonic crystals, complex waveguide arrays in two-dimensional nonlinear lattices, and ring-resonator structures. We demonstrate the basic principles of the resonant scattering management through engineering Fano resonances and find exact results for the wave transmission coefficient. We reveal conditions for perfect reflections and transmissions due to either destructive or constructive interferences, and associate them with Fano resonances, also demonstrating how these resonances can be tuned by nonlinear defects. | | Source: | PubMed, pmid16383775 | | Services: | Forum | Review | Favorites | |
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