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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 12, Iss. 3 — Mar. 1, 1987
  • pp: 143–145

Phase behavior near total absorption by a metallic grating

Ricardo A. Depine, Vera L. Brudny, and J. M. Simon  »View Author Affiliations


Optics Letters, Vol. 12, Issue 3, pp. 143-145 (1987)
http://dx.doi.org/10.1364/OL.12.000143


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Abstract

A bare metallic grating illuminated by a plane, S-polarized electromagnetic wave can completely absorb one of the diffracted orders. These strong absorptions have been reported to be accompanied by two different types of behavior. Here we calculate, by means of an exact differential method, the phase versus angle-of-incidence curves for cycloidal metallic gratings with different groove-depth-to-period ratios. We show that an algorithm based on the electromagnetic theory of gratings can account for the experimentally observed behavior in the vicinity of a resonant anomaly. We also show that this type of study provides additional information about the position of the zeros of the scattering matrix in the complex plane.

© 1987 Optical Society of America

History
Original Manuscript: September 17, 1986
Manuscript Accepted: November 18, 1986
Published: March 1, 1987

Citation
Ricardo A. Depine, Vera L. Brudny, and J. M. Simon, "Phase behavior near total absorption by a metallic grating," Opt. Lett. 12, 143-145 (1987)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-12-3-143

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