Scanning tunneling microscope as a high sensitivity radiation detector

Z. Hasan, D. Andsager, D. Saltz, K. Cartwright, M. H. Nayfeh

Research output: Contribution to journalArticlepeer-review


We present measurements on the effect of laser radiation impinging on the tunneling gap of a scanning tunneling microscope, causing a modulation of the tunneling gap. We have measured variations in the tunneling current equivalent to microscopic expansions that are as small as 0.03 Å, of the order of vibration of individual molecules. The process has also been used for recording the absorption spectrum of an alexandrite crystal.

Original languageEnglish (US)
Pages (from-to)2099-2100
Number of pages2
JournalReview of Scientific Instruments
Issue number3
StatePublished - Dec 1 1992

ASJC Scopus subject areas

  • Instrumentation

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