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Conferences > ODS > 2003 > TuE > TuE11

Phase-change optical recording materials based on GeSb

D. Z. Dimitrov, S.-T. Cheng, W.-C. Hsu, T.-Y. Fang, M.-J. Deng, and S.-Y. Tsai

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Abstract

GeSb based materials are investigated for reversible phase-change recording. The microstructure and crystallization temperatures are determined. It is found that films crystallized to single Sb phase and crystallization temperature decreases as Sb content increases. Time- resolved reflectivity measurements are used to reveal amorphization and crystallization dynamics. Optical disks with GeSb based active layer and DVD format show up to 54 dB CNR at DVD.

© 2003 Optical Society of America

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