title: Real-time recoverable and irrecoverable energy in dispersive-dissipative dielectrics.
abstract: We discuss the recoverable and irrecoverable energy densities associated with a pulse at a point in the propagation medium and derive easily computed expressions to calculate these quantities. Specific types of fields are required to retrieve the recoverable portion of the energy density from the point in the medium, and we discuss the properties that these fields must have. Several examples are given to illustrate these concepts.
authors.affiliation: Department of Mathematics, Brigham Young University, Provo, Utah 84602, USA.
authors.forename: S
authors.initials: S
authors.lastname: Glasgow
authors.forename: M
authors.initials: M
authors.lastname: Meilstrup
authors.forename: J
authors.initials: J
authors.lastname: Peatross
authors.forename: M
authors.initials: M
authors.lastname: Ware