Optical Devices Based on Symmetrical Metal Cladding Waveguides

Chen, Lin

doi:10.5772/48146

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…During the last decade different multilayered waveguiding structures had been studied: the magnetic photonic crystals [32][33][34], nanocomposite multilayers and photonic crystal waveguides [35], silicon-based hybrid gap surface plasmon polariton waveguides [36], nanophotonic and plasmonic waveguides [37] and multilayer graphene waveguides [38]. Besides, four-layer structures due to the enhanced field confinement in guiding layer [39,40] can be effectively used in medical applications such as label free biosensors.…”

Section: Introductionmentioning

confidence: 99%

Four-layer nanocomposite structure as an effective optical waveguide switcher for near-IR regime

Panyaev

Dadoenkova

Rozhleys

et al. 2016

J. Phys. D: Appl. Phys.

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We present a theoretical study of the dispersion and energy properties of the eigenwaves (TEand TM-modes) in a four-layer structure composed of a magneto-optical yttrium iron garnet guiding layer on a dielectric substrate covered by a planar nanocomposite guiding multilayer. The bigyrotropic properties of yttrium-iron garnet are taken into account for obtaining the dispersion equation and an original algorithm for the guided modes identification is proposed. We demonstrated the polarization switching of TE-and TM-modes dependent on the geometrical parameters of the guiding layers. The dispersion diagrams and field profiles are used to illustrate the change of propagation properties with variation of the multilayer thickness ratio of the nanocomposite's layers. The energy flux distributions across the structure are calculated and the conditions of the optimal guiding regime are obtained. The power switching ratio in the waveguide layers of about 6 dB for the wavelength range of 100 nm is shown to be achieved.

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