Tuning Plasmonic Coupling from Touching to Near-touching Nanodimers via Nanometric Gap Size and Morphology

Yina Wu; Andrea Konečná; Shin Hum Cho; Delia J. Milliron; Jordan A. Hachtel; F. Javier García de Abajo; F. Javier García de Abajo

doi:10.1364/CLEO_FS.2023.FF3C.4

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper FF3C.4
•https://doi.org/10.1364/CLEO_FS.2023.FF3C.4

Tuning Plasmonic Coupling from Touching to Near-touching Nanodimers via Nanometric Gap Size and Morphology

Yina Wu, Andrea Konečná, Shin Hum Cho, Delia J. Milliron, Jordan A. Hachtel, and F. Javier García de Abajo

CLEO: Fundamental Science 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Fundamentals and Advances in Plasmonics and Nanophotonics (FF3C)

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Y. Wu, A. Konečná, S. H. Cho, D. J. Milliron, J. A. Hachtel, and F. J. G. de Abajo, "Tuning Plasmonic Coupling from Touching to Near-touching Nanodimers via Nanometric Gap Size and Morphology," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper FF3C.4.

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Abstract

We observe large tunability of hybridized plasmon modes by controlling the gap size and the dimensionality of the gap regions. We present electron energy-loss spectroscopy measurements and detailed theory supporting our results.

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