Mystery of the double limit in homogenization of finitely or perfectly conducting periodic structures
Optics Letters, Vol. 32, Issue 23, pp. 3441-3443 (2007)
http://dx.doi.org/10.1364/OL.32.003441
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Abstract
We show that the difference in the effective medium properties of perfectly or finitely conducting short-period gratings is because for finitely conducting gratings it is possible to completely homogenize the electromagnetic field vector components, contrary to perfectly conducting gratings. As a consequence, for aluminum in the microwave domain, two possible effective media can be found, depending on whether the feature dimensions are much larger or shorter than the depth of field penetration inside the metal.
© 2007 Optical Society of America
OCIS Codes
(050.2065) Diffraction and gratings : Effective medium theory
(050.6624) Diffraction and gratings : Subwavelength structures
ToC Category:
Diffraction and Gratings
History
Original Manuscript: August 1, 2007
Revised Manuscript: October 19, 2007
Manuscript Accepted: October 21, 2007
Published: November 28, 2007
Citation
Evgeny Popov and Stefan Enoch, "Mystery of the double limit in homogenization of finitely or perfectly conducting periodic structures," Opt. Lett. 32, 3441-3443 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-23-3441
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