Reduction of cross-erase in phase-change media

Shuichi Okubo; Masayuki Kubogata; Mitsuya Okada

doi:10.1117/12.327934

23 October 1998 Reduction of cross-erase in phase-change media

Shuichi Okubo, Masayuki Kubogata, Mitsuya Okada

Proceedings Volume 3401, Optical Data Storage '98; (1998) https://doi.org/10.1117/12.327934
Event: Optical Data Storage '98, 1998, Aspen, CO, United States

Abstract

We developed a phase change media that has less cross-erase at a track pitch of less than 0.6 micrometer. The phase change media has an absorptivity ratio A_c/A_a of 1.5 (A_c:absorptivity in a crystalline state, A_a:absorptivity in an amorphous state), while maintaining the rapid cooling structure. There was no significant cross-erase even at a track pitch of 0.52 micrometer. Feasibility of recording capacity of about 5 GB on a 120 mm disk has been confirmed.

Citation Download Citation

Shuichi Okubo, Masayuki Kubogata, and Mitsuya Okada "Reduction of cross-erase in phase-change media", Proc. SPIE 3401, Optical Data Storage '98, (23 October 1998); https://doi.org/10.1117/12.327934

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