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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 10 — May. 7, 2012
  • pp: 10888–10895

Physics of near-wavelength high contrast gratings

Vadim Karagodsky and Connie J. Chang-Hasnain  »View Author Affiliations

Optics Express, Vol. 20, Issue 10, pp. 10888-10895 (2012)

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We present a simple theory explaining the extraordinary features of high-contrast optical gratings in the near-wavelength regime, particularly the very broadband high reflectivity (>99%) and the ultra-high quality factor resonances (Q>107). We present, for the first time, an intuitive explanation for both features using a simple phase selection rule, and reveal the anti-crossing and crossing effects between the grating modes. Our analytical results agree well with simulations and the experimental data obtained from vertical cavity surface emitting lasers incorporating a high contrast grating as top reflector.

© 2012 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(260.2110) Physical optics : Electromagnetic optics
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: January 4, 2012
Revised Manuscript: March 12, 2012
Manuscript Accepted: April 15, 2012
Published: April 26, 2012

Vadim Karagodsky and Connie J. Chang-Hasnain, "Physics of near-wavelength high contrast gratings," Opt. Express 20, 10888-10895 (2012)

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