Observation of STM-luminescence induced by THz-field-driven tunneling electrons

DOI
  • Kimura Kensuke
    Cluster for pioneering research, RIKEN
  • Morinaga Yuta
    Graduate school of engineering science, Yokohama National University
  • Imada Hiroshi
    Cluster for pioneering research, RIKEN
  • Katayama Ikufumi
    Graduate school of engineering science, Yokohama National University
  • Asakawa Kanta
    Graduate school of engineering science, Yokohama National University
  • Yoshioka Katsumasa
    Graduate school of engineering science, Yokohama National University
  • Kim Yousoo
    Cluster for pioneering research, RIKEN
  • Takeda Jun
    Cluster for pioneering research, RIKEN Graduate school of engineering science, Yokohama National University

Bibliographic Information

Other Title
  • テラヘルツ電場駆動トンネル電子により誘起されるSTM発光の観測

Abstract

<p>In this work, we developed a novel nano-spectroscopy technique, entitled terahertz-field-driven scanning tunneling luminescence (THz-STL) spectroscopy, based on a scanning tunneling microscope (STM). THz-STL spectroscopy combines two cutting-edge STM techniques, THz-STM and STL spectroscopy, and enables to investigate atomic-scale energy dissipations triggered by a THz single-cycle pulse. We introduced single-cycle THz pulses into an STM junction (Au tip and Ag(111)) and measured visible photons generated by THz-field-driven electrons. By utilizing this technique, we detected the radiative decay of a localized plasmon excited by THz-field-driven electrons and clarified mechanistic differences in plasmon excitation between field- and DC-driven electrons.</p>

Journal

Details 詳細情報について

  • CRID
    1390853443031135360
  • NII Article ID
    130008134129
  • DOI
    10.14886/jvss.2021.0_2cp05r
  • ISSN
    24348589
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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