title: In-plane displacement measurement configuration with twofold sensitivity.
abstract: An optical configuration is suggested that will achieve a twofold increase in sensitivity when one measures an in-plane displacement component of a deformation vector compared with the Leendertz two-beam illumination method. A theory and experimental demonstration of the method are presented.
authors.forename: R S
authors.initials: RS
authors.lastname: Sirohi
authors.forename: N K
authors.initials: NK
authors.lastname: Mohan