title: Phase measurement for surface infrared-visible sum-frequency generation.
abstract: We present what are to our knowledge the first measurements of the phase of the infrared-visible sum-frequency generation signal. We introduce two techniques and apply the measurements to the determination of the polar orientation of a selected group of atoms within an adsorbed molecule.
authors.forename: R
authors.initials: R
authors.lastname: Superfine
authors.forename: J Y
authors.initials: JY
authors.lastname: Huang
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen