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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 16 — Aug. 15, 2008
  • pp: 1828–1828

Comment on “Resolving the wave vector and the refractive index from the coefficient of reflectance”

Manuel Perez-Molina and Luis Carretero  »View Author Affiliations


Optics Letters, Vol. 33, Issue 16, pp. 1828-1828 (2008)
http://dx.doi.org/10.1364/OL.33.001828


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Abstract

In a recent Letter [1], the reflectance coefficient was used to resolve the sign choice of the wave vector and refractive index in active media. We argue that such a coefficient loses its physical meaning for active media (at real frequencies) when the field amplification is limited only by gain saturation. In this case, the amplitude reflectance coefficient leads to fictitious noncausal reflected fields when the backward Fourier transform is used.

© 2008 Optical Society of America

OCIS Codes
(000.2690) General : General physics
(260.2110) Physical optics : Electromagnetic optics
(350.5500) Other areas of optics : Propagation

ToC Category:
Physical Optics

History
Original Manuscript: January 30, 2008
Manuscript Accepted: March 3, 2008
Published: August 7, 2008

Citation
Manuel Perez-Molina and Luis Carretero, "Comment on “Resolving the wave vector and the refractive index from the coefficient of reflectance”," Opt. Lett. 33, 1828-1828 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-16-1828

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