Phys. Rev. E 75, 016616 (2007) [12 pages]Real-time recoverable and irrecoverable energy in dispersive-dissipative dielectricsReceived 5 July 2006; published 30 January 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.75.016616
DOI:
10.1103/PhysRevE.75.016616
PACS:
42.25.Bs, 41.20.Jb, 04.30.Nk
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