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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 14 — Jul. 15, 2010
  • pp: 2472–2474

Guided-mode resonant wave plates

Robert Magnusson, Mehrdad Shokooh-Saremi, and Eric G. Johnson  »View Author Affiliations


Optics Letters, Vol. 35, Issue 14, pp. 2472-2474 (2010)
http://dx.doi.org/10.1364/OL.35.002472


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Abstract

We introduce half-wave and quarter-wave retarders based on the dispersion properties of guided-mode resonance elements. We design the wave plates using numerical electromagnetic models joined with the particle swarm optimization method. The wave plates operate in reflection. We provide computed results for reflectance and phase in the telecommunication spectral region near 1.55 μm wavelength. A surface-relief grating etched in glass and overcoated with silicon yields a half-wave plate with nearly equal amplitudes of the TE and TM polarization components and π phase difference across a bandwidth exceeding 50 nm . Wider operational bandwidths are obtainable with more complex designs involving glass substrates and mixed silicon/hafnium dioxide resonant gratings. The results indicate a potential new approach to fashion optical retarders.

© 2010 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.2440) Instrumentation, measurement, and metrology : Filters
(130.2790) Integrated optics : Guided waves
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 7, 2010
Revised Manuscript: May 25, 2010
Manuscript Accepted: June 27, 2010
Published: July 14, 2010

Citation
Robert Magnusson, Mehrdad Shokooh-Saremi, and Eric G. Johnson, "Guided-mode resonant wave plates," Opt. Lett. 35, 2472-2474 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-14-2472

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