Predictive aberration correction for multilayer optical data storage

The recording of data in multiple layers, rather than a single layer, permits a significant increase in the capacity of optical data storage devices. However, focusing to the different layers introduces different amounts of depth-dependent aberrations. Variable aberration correction is therefore nec...

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Bibliographic Details
Published in:Applied physics letters 2006-01, Vol.88 (3), p.031109-031109-3
Main Authors: Booth, Martin J., Schwertner, Michael, Wilson, Tony, Nakano, Masaharu, Kawata, Yoshimasa, Nakabayashi, Masahito, Miyata, Sou
Format: Article
Language:English
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Summary:The recording of data in multiple layers, rather than a single layer, permits a significant increase in the capacity of optical data storage devices. However, focusing to the different layers introduces different amounts of depth-dependent aberrations. Variable aberration correction is therefore necessary to maintain diffraction-limited operation. We demonstrate the use of adaptive optics to predict and correct these aberrations for both the recording and read-out of such media.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2166684