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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 9 — May. 1, 2012
  • pp: 1523–1525

Broadband long-wavelength infrared Si/SiO2 subwavelength grating reflector

Justin M. Foley, Anne M. Itsuno, Tanya Das, Silviu Velicu, and Jamie D. Phillips  »View Author Affiliations

Optics Letters, Vol. 37, Issue 9, pp. 1523-1525 (2012)

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A long-wavelength IR broadband reflector is demonstrated using a high-index-contrast subwavelength grating based on a Si/SiO2 system. The field response has been computationally and experimentally verified to exhibit broadband reflectance in the spectral range of 13–16 μm with Δλ/λ=18.5% for reflectance >70%. The gratings exhibit incident field polarization dependence with an average extinction ratio of 1:1.6.

© 2012 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(230.4040) Optical devices : Mirrors
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: October 21, 2011
Revised Manuscript: January 9, 2012
Manuscript Accepted: January 9, 2012
Published: April 30, 2012

Justin M. Foley, Anne M. Itsuno, Tanya Das, Silviu Velicu, and Jamie D. Phillips, "Broadband long-wavelength infrared Si/SiO2 subwavelength grating reflector," Opt. Lett. 37, 1523-1525 (2012)

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