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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 10 — Apr. 1, 2000
  • pp: 1469–1473

Low sideband guided-mode resonant filter

Zoltan Hegedus and Roger Netterfield  »View Author Affiliations


Applied Optics, Vol. 39, Issue 10, pp. 1469-1473 (2000)
http://dx.doi.org/10.1364/AO.39.001469


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Abstract

A guided-mode resonant filter with low sideband reflections is proposed. It is shown that, for serious reduction of out-of band reflectance, the combination of waveguide-grating filter design with conventional antireflective stack design methods is not adequate. To achieve symmetrical low sideband reflectances, independent control of various layer thicknesses is necessary. At a given illumination angle with appropriate control of the waveguide thickness, a specific resonant grating filter is designed whose out-of-band reflectance on both sides of the resonant peak is well below 10-4. Even 50 nm away from the peak, on both sides, the out-of-band reflectance remains below 10-3. Analysis of the variation in the main manufacturing parameters indicates that such filters can be reliably produced with present-day technologies.

© 2000 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(050.2770) Diffraction and gratings : Gratings
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.7370) Optical devices : Waveguides
(240.0310) Optics at surfaces : Thin films

History
Original Manuscript: September 13, 1999
Revised Manuscript: January 3, 2000
Published: April 1, 2000

Citation
Zoltan Hegedus and Roger Netterfield, "Low sideband guided-mode resonant filter," Appl. Opt. 39, 1469-1473 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-10-1469

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