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Proceedings Paper

Nano-composite recording layers applied to write-once high-density optical data storage
Author(s): Hung-Chuan Mai; Tsung-Eong Hsieh
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Paper Abstract

This work demonstrates the feasibility of composite thin film containing nano-scale recording particles to high-density optical data storage. For an HD-DVD format "nano"-optical disk containing such a nano-composite layer, modulation higher than 0.5 was achieved when 11T and 4T signals were respectively written into the disk by using a blue-laser dynamic tester. Transmission electron microscopy (TEM) characterization attributed the recording mechanism to the grain coalescence/coarsening and crystallinity change of nano-recording particles which, in turn, results in sufficient reflectivity difference for signal readout. The utilization of nano-composite recording layers may drastically simplify the optical disk structure and thus is a promising alternative for next-generation write-once data recording.

Paper Details

Date Published: 11 July 2007
PDF: 8 pages
Proc. SPIE 6620, Optical Data Storage 2007, 66202F (11 July 2007); doi: 10.1117/12.738901
Show Author Affiliations
Hung-Chuan Mai, National Chiao-Tung Univ. (Taiwan)
Tsung-Eong Hsieh, National Chiao-Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 6620:
Optical Data Storage 2007
Bernard Bell; Takeshi Shimano, Editor(s)

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