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Optics Letters

Optics Letters


  • Vol. 23, Iss. 1 — Jan. 1, 1998
  • pp: 16–18

Do evanescent waves contribute to the far field?

Emil Wolf and John T. Foley  »View Author Affiliations

Optics Letters, Vol. 23, Issue 1, pp. 16-18 (1998)

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Evanescent waves have become of considerable interest in recent years because of developments in near-field optics. Claims have been made that such waves contribute to the radiation fields of sources and to the far fields of scatterers. We show, by considering a spherical scalar wave and a linear electric dipole field, that these claims are misleading and that such contributions are without physical consequences. Our conclusions apply to a much broader class of fields than those considered in this Letter.

© 1998 Optical Society of America

OCIS Codes
(350.7420) Other areas of optics : Waves

Emil Wolf and John T. Foley, "Do evanescent waves contribute to the far field?," Opt. Lett. 23, 16-18 (1998)

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