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Theory for light emission from a scanning tunneling microscope

Physical Review B, ISSN: 0163-1829, Vol: 42, Issue: 14, Page: 9210-9213
1990
  • 295
    Citations
  • 0
    Usage
  • 79
    Captures
  • 2
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    295
  • Captures
    79
  • Mentions
    2
    • Blog Mentions
      1
      • Blog
        1
    • References
      1
      • Wikipedia
        1

Article Description

We have calculated the rate of light emission from a scanning tunneling microscope with an Ir tip probing a silver film. We find a considerable enhancement of the rate of spontaneous light emission compared with, for example, inverse-photoemission experiments. This enhancement is the result of an amplification of the electromagnetic field in the area below the microscope tip due to a localized interface plasmon. One can estimate that one out of 104 tunneling electrons will emit a photon. We also find that the experimentally observed maximum in the light emission as a function of bias voltage is directly related to the detailed behavior of tip-sample separation versus bias voltage. © 1990 The American Physical Society.

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