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Title: Splashing transients of 2D plasmons launched by swift electrons

Journal Article · · Science Advances

Launching of plasmons by swift electrons has long been used in electron energy–loss spectroscopy (EELS) to investigate the plasmonic properties of ultrathin, or two-dimensional (2D), electron systems. However, the question of how a swift electron generates plasmons in space and time has never been answered. We address this issue by calculating and demonstrating the spatial-temporal dynamics of 2D plasmon generation in graphene. We predict a jet-like rise of excessive charge concentration that delays the generation of 2D plasmons in EELS, exhibiting an analog to the hydrodynamic Rayleigh jet in a splashing phenomenon before the launching of ripples. The photon radiation, analogous to the splashing sound, accompanies the plasmon emission and can be understood as being shaken off by the Rayleigh jet–like charge concentration. Considering this newly revealed process, we argue that previous estimates on the yields of graphene plasmons in EELS need to be reevaluated.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001299; FG02-09ER46577
OSTI ID:
1388459
Journal Information:
Science Advances, Vol. 3, Issue 1; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 68 works
Citation information provided by
Web of Science

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Cited By (22)

Magnetic Hyperbolic Metasurface: Concept, Design, and Applications journal November 2018
Gradient Chiral Metamirrors for Spin-Selective Anomalous Reflection journal October 2017
Group-Velocity-Controlled and Gate-Tunable Directional Excitation of Polaritons in Graphene-Boron Nitride Heterostructures journal March 2018
Plasmon-Enhanced Spin-Orbit Interaction of Light in Graphene journal August 2018
Normal Doppler Frequency Shift in Negative Refractive‐Index Systems journal November 2019
Terahertz optical bistability of graphene-coated cylindrical core–shell nanoparticles journal August 2018
Hyperbolic spoof plasmonic metasurfaces journal August 2017
Controlling Cherenkov angles with resonance transition radiation journal May 2018
Superlight inverse Doppler effect journal July 2018
Metasurfaces in terahertz waveband journal October 2017
Independently tunable dual-spectral electromagnetically induced transparency in a terahertz metal–graphene metamaterial journal September 2018
Functional metasurfaces based on metallic and dielectric subwavelength slits and stripes array journal March 2018
Low-Threshold Lasing and Coherent Perfect Absorption in Generalized P T -Symmetric Optical Structures journal August 2018
Effective Surface Plasmon Polaritons Induced by Modal Dispersion in a Waveguide journal April 2017
Hydrodynamic model approach to the formation of plasmonic wakes in graphene journal November 2017
Multiple acoustic surface plasmons in graphene/Cu(111) contacts journal January 2018
Midinfrared Plasmonic Valleytronics in Metagate-Tuned Graphene journal August 2018
Observing the transient buildup of a superscatterer in the time domain journal January 2017
Launching phase-controlled surface plasmons on Babinet metasurfaces journal January 2018
Van der Waals materials integrated nanophotonic devices [Invited] journal January 2019
Controlling Cherenkov Angles with Resonance Transition Radiation conference January 2018
Group-velocity-controlled and gate-tunable directional excitation of polaritons in graphene-boron nitride heterostructures preprint January 2018

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