title: Second harmonic generation for in situ analysis of electrode surface structure.
abstract: The nonlinear optical technique of second harmonic generation has been used as an in situ probe of surface structure and symmetry at the electrode-electrolyte interface. Rotational anisotropy in the second harmonic (SH) signalprovides valuable information on the degree of structural order at the metal surface. For Ag(111), the observed patterns in the p-and s-polarized SH output agree with current theories and demonstrate that an ordered surface is present. These patterns change as the electrode is electrochemically roughened.
authors.forename: V L
authors.initials: VL
authors.lastname: Shannon
authors.forename: D A
authors.initials: DA
authors.lastname: Koos
authors.forename: G L
authors.initials: GL
authors.lastname: Richmond