title: Detection of transient surface acoustic waves of nanometric amplitude with double-pulsed TV holography.
abstract: We describe the detection of bursts of surface acoustic waves by a double-pulsed TV holography technique. We describe mathematically the long- and short-wave bursts in the output correlograms and validate theoretical results with experimental images. The use of short-wave bursts permits us to scan the surface and makes it easier to distinguish, for purposes of nondestructive testing, the disturbances produced by flaws.
authors.affiliation: Departamento de Física Aplicada, Universidad de Vigo, Esuela Técnica Superior de Ingenieros Industriales, Campus de Lagoas-Marcosende, 36280 Vigo, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Trillo
authors.forename: Daniel
authors.initials: D
authors.lastname: Cernadas
authors.forename: Angel F
authors.initials: AF
authors.lastname: Doval
authors.forename: Carlos
authors.initials: C
authors.lastname: López
authors.forename: Benito V
authors.initials: BV
authors.lastname: Dorrío
authors.forename: José L
authors.initials: JL
authors.lastname: Fernández