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Atomic spatial resolution spectroscopy in the THz spectral range

Research Project

Project/Area Number 23654099
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionTohoku University

Principal Investigator

UEHARA Yoichi  東北大学, 電気通信研究所, 教授 (30184964)

Co-Investigator(Kenkyū-buntansha) KUWAHARA Masashi  独立行政法人産業技術総合研究所, 光技術部門, 主任研究員 (60356954)
SUZUKI Tetsu  仙台高等専門学校, 情報通信工学科, 教授 (90171230)
Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords表面・界面 / 原子位置分解能 / テラヘルツ分光 / テラヘルツ / 走査トンネル顕微鏡 / THz / 電子トンネル発光 / STM / 微細領域分光計測
Research Abstract

In order to confirm whether STM light is detectable in the THz spectral range, experimental investigations have been carried out. Light emission from the Sb2Te3 sample -W tip gap of a STM was successfully detected in the THz spectral range. This result shows that spectroscopic investigations with atomic spatial resolution in the THz spectral range are indeed possible, because the tunneling electron beam in STM, which excites the STM light emission, is well focused up to the atomic level.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (2 results)

All 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results)

  • [Journal Article] Mechanism of Prism-Coupled Scanning Tunneling Microscope Light Emission2011

    • Author(s)
      W. Iida, J. Ahamed, S. Katano, and Y. Uehara
    • Journal Title

      Jpn. J. Applied Phys

      Volume: 50 Pages: 95201-95201

    • NAID

      40019010398

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mechanism of Prism-Coupled Scanning Tunneling Microscope Light Emission2011

    • Author(s)
      W. Iida, J. Ahamed, S. Katano, and Y. Uehara
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 50 Issue: 9R Pages: 095201-095201

    • DOI

      10.1143/jjap.50.095201

    • NAID

      40019010398

    • Related Report
      2011 Research-status Report
    • Peer Reviewed

URL: 

Published: 2011-08-05   Modified: 2020-05-15  

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