title: Generalized optical theorem for reflection, transmission, and extinction of power for scalar fields.
abstract: We present a derivation of the optical theorem that makes it possible to obtain expressions for the extinguished power in a very general class of problems not previously treated. The results are applied to the analysis of the extinction of power by a scatterer in the presence of a lossless half space. Applications to microscopy and tomography are discussed.
authors.affiliation: Department of Electrical and Computer Engineering and The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
authors.forename: P Scott
authors.initials: PS
authors.lastname: Carney
authors.forename: John C
authors.initials: JC
authors.lastname: Schotland
authors.forename: Emil
authors.initials: E
authors.lastname: Wolf