Quantum mechanical effects in plasmonic structures with subnanometre gaps

Zhu, Wenqi; Esteban, Rubén; Borisov, A. G.; Baumberg, Jeremy J.; Nordlander, Peter; Lezec, Henri J.; Aizpurua, Javier; Crozier, Kenneth B.

doi:10.1038/ncomms11495

reviewNature CommunicationsJun 3, 2016GOLD OA

Quantum mechanical effects in plasmonic structures with subnanometre gaps

WZWenqi Zhu RERubén Esteban AGA. G. Borisov JJJeremy J. Baumberg PNPeter Nordlander

National Institute of Standards and Technology · Center for Nanoscale Science and Technology · +9 more institutions

PubMed

Indexed incrossrefdatacitedoajpubmed

Abstract

Metallic structures with nanogap features have proven highly effective as building blocks for plasmonic systems, as they can provide a wide tuning range of operating frequencies and large near-field enhancements. Recent work has shown that quantum mechanical effects such as electron tunnelling and nonlocal screening become important as the gap distances approach the subnanometre length-scale. Such quantum effects challenge the classical picture of nanogap plasmons and have stimulated a number of theoretical and experimental studies. This review outlines the findings of many groups into quantum mechanical effects in nanogap plasmons, and discusses outstanding challenges and future directions.

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Topics & keywords

Topics

Keywords

Plasmon
Quantum
Nanotechnology
Physics
Materials science
Optoelectronics
Quantum mechanics

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