Microscopy of adsorbates by surface second-harmonic generation

K. A. Schultz, I. I. Suni, E. G. Seebauer

Research output: Contribution to journalArticlepeer-review


A form of optical second-harmonic microscopy has been developed that spatially resolves concentration gradients of surface adsorbates. Surface concentration profiles at submonolayer levels are illuminated with a pulsed laser, and the reflected second-harmonic light is imaged into a photodiode array. Micrometer-scale resolution is obtainable while the surface damage and the spurious chemistry induced by more conventional electron- or ion-based techniques are avoided. We have used this microscopy to monitor the surface diffusion of Sb on Ge(111).

Original languageEnglish (US)
Pages (from-to)546-550
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Issue number3
StatePublished - Mar 1993

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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