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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 6 — Mar. 15, 2013
  • pp: 989–991

Flat-top resonant reflectors with sharply delimited angular spectra: an application of the Rayleigh anomaly

Robert Magnusson  »View Author Affiliations


Optics Letters, Vol. 38, Issue 6, pp. 989-991 (2013)
http://dx.doi.org/10.1364/OL.38.000989


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Abstract

We introduce the concept of Rayleigh reflectors where extremely sharp angular spectra with unity reflectance are obtained across considerable angular extents. Enabling the device is a rapid, high-efficiency transition from an evanescent to a propagating first-order substrate wave occurring at the Rayleigh angle. A high-index nanolayer located adjacent to the substrate is seen to critically affect the resulting spectra. Away from the Rayleigh anomaly, the device is a basic guided-mode resonance (GMR) high reflector. Hence, this device connects the fundamental concepts of GMR and the Rayleigh anomaly with interesting possible applications, including filters and couplers.

© 2013 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(230.5750) Optical devices : Resonators
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: January 22, 2013
Revised Manuscript: February 20, 2013
Manuscript Accepted: February 20, 2013
Published: March 14, 2013

Citation
Robert Magnusson, "Flat-top resonant reflectors with sharply delimited angular spectra: an application of the Rayleigh anomaly," Opt. Lett. 38, 989-991 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-6-989

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