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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 24 — Nov. 23, 2009
  • pp: 21590–21597

Spherically shaped micro-structured antireflective surfaces

R. Bouffaron, L. Escoubas, V. Brissonneau, J. J. Simon, G. Berginc, Ph. Torchio, F. Flory, and Ph. Masclet  »View Author Affiliations

Optics Express, Vol. 17, Issue 24, pp. 21590-21597 (2009)

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An antireflecting micro-structured interface, working in the resonance domain, and made from a bi-periodic array of semi-spherical hollowing-out in a silicon substrate is presented. Its parameters such as sphere radius and position of sphere centers from the surface are optimized numerically. A simple and robust process is described allowing such kind of antireflective surfaces to be fabricated for the infrared range. Spectral and angular reflectance measurement demonstrates the efficiency of the antireflective micro-structured interface which can easily be adapted for the visible range and for photovoltaic applications by a simple homothetic modification of the micro-structure typical dimensions.

© 2009 OSA

OCIS Codes
(310.1210) Thin films : Antireflection coatings
(050.5298) Diffraction and gratings : Photonic crystals
(050.5745) Diffraction and gratings : Resonance domain
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: August 17, 2009
Revised Manuscript: September 16, 2009
Manuscript Accepted: October 8, 2009
Published: November 11, 2009

R. Bouffaron, L. Escoubas, V. Brissonneau, J. J. Simon, G. Berginc, Ph. Torchio, F. Flory, and Ph. Masclet, "Spherically shaped micro-structured antireflective surfaces," Opt. Express 17, 21590-21597 (2009)

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