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Proceedings Paper

Multiphysics simulation of super-resolution BD ROM optical disk readout
Author(s): J. Pichon; R. Anciant; J. M. Bruneau; B. Hyot; S. Gidon; M. F. Armand; L. Poupinet
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Paper Abstract

In this paper we propose a multiphysics simulation of Super-Resolution BD ROM disk readout. Local metallization of the thin semiconductive layer deposited on a ROM substrate comprising a monotone sequence of 100 nm pits has been modelized by applying a Drude nonlinearity to the optical properties of the material. The photo-induced creation of free carriers lifted to the conduction band is assumed to be responsible for a local change in the optical properties of the active layer, making possible the detection of a far-field signal corresponding to pits smaller than the diffraction limit at a high readout power.

Paper Details

Date Published: 22 June 2006
PDF: 11 pages
Proc. SPIE 6282, Optical Data Storage 2006, 628219 (22 June 2006); doi: 10.1117/12.685239
Show Author Affiliations
J. Pichon, MPO International (France)
R. Anciant, MPO International (France)
J. M. Bruneau, MPO International (France)
B. Hyot, CEA - Leti (France)
S. Gidon, CEA - Leti (France)
M. F. Armand, CEA - Leti (France)
L. Poupinet, CEA - Leti (France)


Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006

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