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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1455–1457

Sand-castle biperiodic pattern for spectral and angular broadening of antireflective properties

Ludovic Escoubas, Renaud Bouffaron, Vincent Brissonneau, Jean-Jacques Simon, Gérard Berginc, Francois Flory, and Philippe Torchio  »View Author Affiliations

Optics Letters, Vol. 35, Issue 9, pp. 1455-1457 (2010)

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This Letter deals with the antireflective properties of top-patterned pyramids, looking like sand castles, bi-periodically repeated on a silicon surface. It is demonstrated numerically that such an original pattern allows a dramatic spectral and angular broadening of the antireflective efficiency. Design examples are given for wavelengths ranging from 0.5 μ m to 5 μ m and incidence angles of 30° and 45°. Applications of such antireflective surfaces on photodetectors and solar cells are soon expected.

© 2010 Optical Society of America

OCIS Codes
(310.1210) Thin films : Antireflection coatings
(350.2770) Other areas of optics : Gratings
(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: January 21, 2010
Revised Manuscript: March 16, 2010
Manuscript Accepted: March 18, 2010
Published: April 30, 2010

Ludovic Escoubas, Renaud Bouffaron, Vincent Brissonneau, Jean-Jacques Simon, Gérard Berginc, Francois Flory, and Philippe Torchio, "Sand-castle biperiodic pattern for spectral and angular broadening of antireflective properties," Opt. Lett. 35, 1455-1457 (2010)

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