Nano-composite recording layers applied to write-once high-density optical data storage

Hung-Chuan Mai; Tsung-Eong Hsieh

doi:10.1117/12.738901

11 July 2007 Nano-composite recording layers applied to write-once high-density optical data storage

Hung-Chuan Mai, Tsung-Eong Hsieh

Proceedings Volume 6620, Optical Data Storage 2007; 66202F (2007) https://doi.org/10.1117/12.738901
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

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.

Citation Download Citation

Hung-Chuan Mai and Tsung-Eong Hsieh "Nano-composite recording layers applied to write-once high-density optical data storage", Proc. SPIE 6620, Optical Data Storage 2007, 66202F (11 July 2007); https://doi.org/10.1117/12.738901

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