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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 23 — Dec. 1, 2012
  • pp: 4928–4930

Electromagnetic field equations of the volume plasmon

Peter Muys  »View Author Affiliations

Optics Letters, Vol. 37, Issue 23, pp. 4928-4930 (2012)

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The volume plasmon is traditionally defined as a one-dimensional collective oscillation of the free-charge carriers in a metallic volume. Here, we use an alternative approach with the geometry of a lossy Fabry–Perot cavity in a metallic slab. The field equations now show singularities at the plasma resonance, but these can be worked away. We find that the volume plasmon is not purely longitudinal, as in the classical picture; that it does not show evanescence, that its magnetic field is zero, and that at resonance the Fabry–Perot reflectance of the resonant slab equals one. These attributes differentiate the volume plasmon more fundamentally from the surface plasmon than was thought up to now.

© 2012 Optical Society of America

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(260.5740) Physical optics : Resonance
(260.6042) Physical optics : Singular optics

ToC Category:
Physical Optics

Original Manuscript: October 3, 2012
Revised Manuscript: October 18, 2012
Manuscript Accepted: October 30, 2012
Published: November 28, 2012

Peter Muys, "Electromagnetic field equations of the volume plasmon," Opt. Lett. 37, 4928-4930 (2012)

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  1. M. Born and E. Wolf, Principles of Optics, 7th (expanded) ed. (Cambridge University, 1999), p. 65.
  2. N. Van Kampen and B. Felderhof, Theoretical Methods in Plasma Physics (North-Holland, 1967), p. 117.
  3. W. N. Hansen, J. Opt. Soc. Am. 58, 380 (1968). [CrossRef]

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