Journal article

Enhancement of optical processes in coupled plasmonic nanocavities [Invited]

Patrice Genevet, Jean-Philippe Tetienne, Romain Blanchard, Mikhail A Kats, JP Balthasar Mueller, Marlan O Scully, Federico Capasso



We present detailed experimental and numerical investigations of resonances in deep nanogroove gratings in metallic substrates. These plasmonic nanocavity gratings feature enhanced fields within the grooves that enable a large enhancement of linear and nonlinear optical processes. This enhancement relies on both localized and propagating surface plasmons on the nanopatterned surface. We show that the efficiency of optical processes such as Raman scattering and four-wave mixing is dramatically enhanced by plasmonic nanocavity gratings.

University of Melbourne Researchers


Awarded by National Science Foundation (NSF)

Awarded by Robert A. Welch Foundation

Funding Acknowledgements

M.O.S. and P. G. acknowledge National Science Foundation (NSF) Grant No. EEC-0540832, the U. S. Office of Naval Research (ONR), and the Robert A. Welch Foundation (A-1261). The Harvard University work was supported by the NSF Nanoscale Science and Engineering Center, the Center for Nanoscale Systems at Harvard University, a member of the National Nanotechnology Infrastructure Network, and the Institute for Quantum Studies at Texas A&M University. J. P. T. is supported by the Ecole Normale Superieure de Cachan, France. M. A. K. is supported by the NSF through a Graduate Research Fellowship.