Blu-ray type super resolution near field optical disk with Sb<sub>2</sub> Te<sub>3</sub> mask layers and a thermal shield layer in front of the mask layer

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

doi:10.1117/12.685183

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22 June 2006 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

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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Proceedings Volume 6282, Optical Data Storage 2006; 62821U (2006) https://doi.org/10.1117/12.685183
Event: Optical Data Storage 2006, 2006, Montréal, Canada

Abstract

Two structures super-resolution near-field phase-change optical disks with masks Sb₂Te₃ 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.

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L. P. Shi, T. C. Chong, X. Hu, J. M. Li, X. S. Miao, H. X. Yang, K. G. Lim, K. C. Zhao, and G. Y. Li "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", Proc. SPIE 6282, Optical Data Storage 2006, 62821U (22 June 2006); https://doi.org/10.1117/12.685183

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