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Confined Visible Optical Tamm States

Abstract : Optical Tamm states are 2D electromagnetic modes propagating at the interface between a Bragg mirror and a metallic film. When a thin (a few tens nm) metallic micron—radius disk is deposited on a Bragg mirror, optical Tamm states can be confined below the disk surface, creating a Tamm-states cavity. We describe here the photoluminescence properties of colloidal semiconductor nanocrystals embedded in a Tamm cavity. Tamm states confinement effects are demonstrated and analysed as a function of the disk diameter, and compared with finite-elements simulations.
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F. Feng, K. Ouaret, S. Portalupi, X. Lafosse, M. Nasilovski, et al.. Confined Visible Optical Tamm States. Journal of Electronic Materials, Institute of Electrical and Electronics Engineers, 2015, pp.1-4. ⟨10.1007/s11664-015-4213-7⟩. ⟨hal-01243655⟩

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