Fermat's principle and real space-time rays in absorbing media

D. Censor

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Real wave packets and group velocities are considered for linear, dispersive homogeneous (but possibly anisotropic) absorptive media. In inhomogeneous media the rays are determined by the Fermat principle. Coupled with the relevant constraints this yields the Hamilton equations of geometrical optics for real rays in absorbing media.

Original languageEnglish
Article number012
Pages (from-to)1781-1790
Number of pages10
JournalJournal of Physics A: General Physics
Issue number10
StatePublished - 1 Dec 1977

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Physics and Astronomy (all)
  • Mathematical Physics


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