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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. © 2006 American Institute of Physics.

Original publication

DOI

10.1063/1.2166684

Type

Journal article

Journal

Applied Physics Letters

Publication Date

30/01/2006

Volume

88

Pages

1 - 3