Scanning tunneling microscopy using dynamic laser heating

Joshua Ballard, Dongxia Shi, Erin Carmichael, Sravan Pappu, Joe Lyding, Martin Gruebele

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A hydrogen passivated Si(100)-2×l surface is studied using ultrafast laser excitation with a novel total internal reflection geometry. The incoherent tip and sample heating dynamics are studied, and it is shown that as long as the STM feedback is faster than the heating and cooling processes, atomic scale imaging can be achieved, even in the presence of significant tip and sample expansion and contraction. This opens the door for studies of surface processes on the ultrafast timescale.

Original languageEnglish (US)
Title of host publication2004 4th IEEE Conference on Nanotechnology
Pages68-70
Number of pages3
StatePublished - Dec 1 2004
Event2004 4th IEEE Conference on Nanotechnology - Munich, Germany
Duration: Aug 16 2004Aug 19 2004

Publication series

Name2004 4th IEEE Conference on Nanotechnology

Other

Other2004 4th IEEE Conference on Nanotechnology
CountryGermany
CityMunich
Period8/16/048/19/04

Keywords

  • Laser Chemistry Applications
  • Microscopy
  • Nanotechnology
  • Optical Spectroscopy
  • Ultrafast Optics

ASJC Scopus subject areas

  • Engineering(all)

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