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Article Dans Une Revue Optics Express Année : 2014

Simultaneous bandgaps in LiNbO3 phoxonic crystal slab

Résumé

We study simultaneous photonic and phononic crystal slabs created in Z-cut lithium niobate membranes. Bandgaps for guided waves are identified using the three-dimensional finite element method (FEM). Three lattices are considered: the square, the hexagonal, and the honeycomb lattices. We investigate the evolution of band gaps as a function of geometrical parameters such as hole radius and membrane thickness. We show the existence of dual photonic and phononic bandgaps in the triangular lattice for suitable geometrical parameters and specific modal symmetries for both the elastic and the electromagnetic fields.

Dates et versions

hal-01018289 , version 1 (04-07-2014)

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Quentin Rolland, Samuel Dupont, Joseph Gazalet, Jean-Claude Kastelik, Yan Pennec, et al.. Simultaneous bandgaps in LiNbO3 phoxonic crystal slab. Optics Express, 2014, 22, pp.16288-16297. ⟨10.1364/OE.22.016288⟩. ⟨hal-01018289⟩
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