Enhanced generation and anisotropic Coulomb scattering of hot electrons in an ultra-broadband plasmonic nanopatch metasurface

Matthew E. Sykes; Jon W. Stewart; Gleb M. Akselrod; Xiang-Tian Kong; Zhiming Wang; David J. Gosztola; Alex B. F. Martinson; Daniel Rosenmann; Maiken H. Mikkelsen; Alexander O. Govorov; Gary P. Wiederrecht

doi:10.1038/s41467-017-01069-3

Nature Communications (Oct 2017)

Enhanced generation and anisotropic Coulomb scattering of hot electrons in an ultra-broadband plasmonic nanopatch metasurface

Matthew E. Sykes,
Jon W. Stewart,
Gleb M. Akselrod,
Xiang-Tian Kong,
Zhiming Wang,
David J. Gosztola,
Alex B. F. Martinson,
Daniel Rosenmann,
Maiken H. Mikkelsen,
Alexander O. Govorov,
Gary P. Wiederrecht

Affiliations

Matthew E. Sykes: Center for Nanoscale Materials, Argonne National Laboratory
Jon W. Stewart: Department of Electrical and Computer Engineering, Duke University
Gleb M. Akselrod: Department of Electrical and Computer Engineering, Duke University
Xiang-Tian Kong: Institute of Fundamental and Frontier Sciences and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China
Zhiming Wang: Institute of Fundamental and Frontier Sciences and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China
David J. Gosztola: Center for Nanoscale Materials, Argonne National Laboratory
Alex B. F. Martinson: Materials Science Division, Argonne National Laboratory
Daniel Rosenmann: Center for Nanoscale Materials, Argonne National Laboratory
Maiken H. Mikkelsen: Department of Electrical and Computer Engineering, Duke University
Alexander O. Govorov: Department of Physics and Astronomy, Ohio University
Gary P. Wiederrecht: Center for Nanoscale Materials, Argonne National Laboratory

DOI: https://doi.org/10.1038/s41467-017-01069-3
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 11

Abstract

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The creation of energetic electrons through plasmon excitation has implications in optical energy conversion and ultrafast nanophotonics. Here, the authors find evidence for three subpopulations of nonthermal carriers which arise from anisotropic electron-electron scattering near the Fermi surface.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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