Strong coupling in the sub-wavelength limit using metamaterial nanocavities

A. Benz, S. Campione, S. Liu, I. Montaño, J. F. Klem, A. Allerman, J. R. Wendt, M. B. Sinclair, F. Capolino, I. Brener

Research output: Contribution to journalArticlepeer-review

110 Scopus citations


The interaction between cavity modes and optical transitions leads to new coupled light-matter states in which the energy is periodically exchanged between the matter states and the optical mode. Here we present experimental evidence of optical strong coupling between modes of individual sub-wavelength metamaterial nanocavities and engineered optical transitions in semiconductor heterostructures. We show that this behaviour is generic by extending the results from the mid-infrared (∼10 μm) to the near-infrared (∼1.5 μm). Using mid-infrared structures, we demonstrate that the light-matter coupling occurs at the single resonator level and with extremely small interaction volumes. We calculate a mode volume of 4.9 × 10 -4 (λ/n) 3 from which we infer that only ∼2,400 electrons per resonator participate in this energy exchange process.

Original languageEnglish (US)
Article number2882
JournalNature Communications
StatePublished - Nov 29 2013
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry, Genetics and Molecular Biology
  • General Physics and Astronomy


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