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Proceedings Paper

Blu-ray type super resolution near field optical disk with Sb2 Te3 mask layers and a thermal shield layer in front of the mask layer
Author(s): L. P. Shi; T. C. Chong; X. Hu; J. M. Li; X. S. Miao; H. X. Yang; K. G. Lim; K. C. Zhao; G. Y. Li
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Paper Abstract

Two structures super-resolution near-field phase-change optical disks with masks Sb2 Te3 layer and a thermal shield layer in front of the mask layer on Blu-ray substrates were studied theoretically and experimentally. Optical simulation was conducted and the modulation transfer function (MTF) was calculated. MTF calculation results has revealed that the super-RENS optical disk exhibited the maximum response when nearly half of the laser spot was covered by the mask. The thermal simulation was used to find the optimum condition meaning that half of the laser beam is covered by the aperture on the mask layer. The recording signal and thermal stability on different structures were measured and analyzed. The simulation results are in good agreement with the experiment results.

Paper Details

Date Published: 22 June 2006
PDF: 8 pages
Proc. SPIE 6282, Optical Data Storage 2006, 62821U (22 June 2006); doi: 10.1117/12.685183
Show Author Affiliations
L. P. Shi, Data Storage Institute (Singapore)
T. C. Chong, Data Storage Institute (Singapore)
X. Hu, Data Storage Institute (Singapore)
J. M. Li, Data Storage Institute (Singapore)
X. S. Miao, Data Storage Institute (Singapore)
H. X. Yang, Data Storage Institute (Singapore)
K. G. Lim, Data Storage Institute (Singapore)
K. C. Zhao, Nanyang Technical Univ. of Singapore (Singapore)
G. Y. Li, Nanyang Technical Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006
Ryuichi Katayama; Tuviah E. Schlesinger, Editor(s)

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