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Light trapping in an all-dielectric open cavity

Silva, Solange Silva ; Morgado, T. A. ; Silveirinha, M. G.

Light trapping in an all-dielectric open cavity, Proc International Congress on Engineered Material Platforms for Novel Wave Phenomena – Metamaterials , Marseille, France, Vol. , pp. - , August, 2017.

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Here we suggest a new approach to trap light in an all-dielectric open subwavelength cavity. The interplay of a Fano resonance and a nonlinear response enables storing the electromagnetic radiation within the open dielectric cavity for a long period of time. The proposed light trapping mechanism may be an interesting alternative to conventional electrically-large whispering gallery resonators, or to core-shell plasmonic resonators sensitive
to ohmic losses.