Reactivity of surfaces and imaging with functional NSOM

Trevor L. Knutson, Francis Guillaume, Woo Jin Lee, Mansour Alhoshan, William H. Smyrl

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Practical interest in high-resolution microscopy relates to its use on reactive and reacting heterogeneous surfaces. As the features of interest approach the nanometer range in functional structures, the microscopic techniques must approach the same resolution in order to monitor the progress of degradation processes and to assess the reliability and lifetime of the features. Of interest here is the modified near field optical scanning microscope for determining concurrent topography, fluorescence intensity and fluorescence spectroscopy on reactive surfaces of aluminum alloy Al 2024. It is shown that fluorescence spectroscopy on localized surface spots reveals aspects of the chemical nature of the matrix surrounding the dye. The spatial resolution and spectral resolution of the instrument will be discussed.

Original languageEnglish (US)
Pages (from-to)3229-3237
Number of pages9
JournalElectrochimica Acta
Issue number20-22
StatePublished - Sep 30 2003


  • Corrosion
  • Fluorescence microspectroscopy
  • NSOM
  • Nanostructures
  • Surface reactivity


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