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

Abstract

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.

Authors:
 [1]; ORCiD logo [2];  [3];  [3]; ORCiD logo [3];  [3]; ORCiD logo [4];  [2]; ORCiD logo [2];  [5];  [3]
  1. Zhejiang Univ., Hangzhou (China).; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Nanyang Technological Univ. (Singapore)
  4. Univ. of Zagreb (Croatia)
  5. Zhejiang Univ., Hangzhou (China).
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1388459
Grant/Contract Number:  
SC0001299; FG02-09ER46577
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 3; Journal Issue: 1; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Lin, Xiao, Kaminer, Ido, Shi, Xihang, Gao, Fei, Yang, Zhaoju, Gao, Zhen, Buljan, Hrvoje, Joannopoulos, John D., Soljačić, Marin, Chen, Hongsheng, and Zhang, Baile. Splashing transients of 2D plasmons launched by swift electrons. United States: N. p., 2017. Web. doi:10.1126/sciadv.1601192.
Lin, Xiao, Kaminer, Ido, Shi, Xihang, Gao, Fei, Yang, Zhaoju, Gao, Zhen, Buljan, Hrvoje, Joannopoulos, John D., Soljačić, Marin, Chen, Hongsheng, & Zhang, Baile. Splashing transients of 2D plasmons launched by swift electrons. United States. doi:10.1126/sciadv.1601192.
Lin, Xiao, Kaminer, Ido, Shi, Xihang, Gao, Fei, Yang, Zhaoju, Gao, Zhen, Buljan, Hrvoje, Joannopoulos, John D., Soljačić, Marin, Chen, Hongsheng, and Zhang, Baile. Fri . "Splashing transients of 2D plasmons launched by swift electrons". United States. doi:10.1126/sciadv.1601192. https://www.osti.gov/servlets/purl/1388459.
@article{osti_1388459,
title = {Splashing transients of 2D plasmons launched by swift electrons},
author = {Lin, Xiao and Kaminer, Ido and Shi, Xihang and Gao, Fei and Yang, Zhaoju and Gao, Zhen and Buljan, Hrvoje and Joannopoulos, John D. and Soljačić, Marin and Chen, Hongsheng and Zhang, Baile},
abstractNote = {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.},
doi = {10.1126/sciadv.1601192},
journal = {Science Advances},
number = 1,
volume = 3,
place = {United States},
year = {2017},
month = {1}
}

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    Works referencing / citing this record:

    Effective Surface Plasmon Polaritons Induced by Modal Dispersion in a Waveguide
    journal, April 2017


    Observing the transient buildup of a superscatterer in the time domain
    journal, January 2017