Multiphysics simulation of super-resolution BD ROM optical disk readout

J. Pichon; R. Anciant; J. M. Bruneau; B. Hyot; S. Gidon; M. F. Armand; L. Poupinet

doi:10.1117/12.685239

22 June 2006 Multiphysics simulation of super-resolution BD ROM optical disk readout

J. Pichon, R. Anciant, J. M. Bruneau, B. Hyot, S. Gidon, M. F. Armand, L. Poupinet

Proceedings Volume 6282, Optical Data Storage 2006; 628219 (2006) https://doi.org/10.1117/12.685239
Event: Optical Data Storage 2006, 2006, Montréal, Canada

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.

Citation Download Citation

J. Pichon, R. Anciant, J. M. Bruneau, B. Hyot, S. Gidon, M. F. Armand, and L. Poupinet "Multiphysics simulation of super-resolution BD ROM optical disk readout", Proc. SPIE 6282, Optical Data Storage 2006, 628219 (22 June 2006); https://doi.org/10.1117/12.685239

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