Super-resolution near-field optical disk with a thermal shield layer behind recording layer

L. P. Shi; T. C. Chong; J. Y. Sze; J. M. Li; X. S. Miao; W. H. Lim; C. L. Gan

doi:10.1117/12.738888

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11 July 2007 Super-resolution near-field optical disk with a thermal shield layer behind recording layer

L. P. Shi, T. C. Chong, J. Y. Sze, J. M. Li, X. S. Miao, W. H. Lim, C. L. Gan

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Proceedings Volume 6620, Optical Data Storage 2007; 662017 (2007) https://doi.org/10.1117/12.738888
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

Abstract

Super-resolution near-field optical disk is one of the solutions to overcome diffraction limit and achieve high density optical recording. In this paper, a structure of super-resolution near-field phase-change optical disk with a thin thermal shield layer behind the recording layer is proposed. The optical disks with the new structure were studied theoretically and experimentally. Thermal simulation shows that the thermal shield layer can reduce the phase change layer temperature, thus improve the thermal stability of the disks. The disks with this structure were fabricated and characterized. The experiment results are in good agreement with the simulation results.

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L. P. Shi, T. C. Chong, J. Y. Sze, J. M. Li, X. S. Miao, W. H. Lim, and C. L. Gan "Super-resolution near-field optical disk with a thermal shield layer behind recording layer", Proc. SPIE 6620, Optical Data Storage 2007, 662017 (11 July 2007); https://doi.org/10.1117/12.738888

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