Near-field imaging of coupled photonic-crystal microcavities

S. Vignolini, F. Intonti, M. Zani, F. Riboli, D.S. Wiersma, L. Li, L.P. Balet, M. Francardi, A. Gerardino, A. Fiore, M. Gurioli

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Abstract

We report by means of near-field microscopy on the coupling between two adjacent photonic crystal microcavities. Clear-cut experimental evidence of the spatial delocalization of coupled-cavity optical modes is obtained by imaging the electromagnetic local density of states. We also demonstrate that it is possible to design photonic structures with selective coupling between different modes having orthogonal spatial extensions © 2009 American Institute of Physics.
Original languageEnglish
Article number151103
Pages (from-to)151103-1/3
JournalApplied Physics Letters
Volume94
Issue number15
DOIs
Publication statusPublished - 2009

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