Predictive aberration correction for multilayer optical data storage
Abstract
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.
- Publication:
-
Applied Physics Letters
- Pub Date:
- January 2006
- DOI:
- 10.1063/1.2166684
- Bibcode:
- 2006ApPhL..88c1109B
- Keywords:
-
- 42.79.Vb;
- 42.15.Fr;
- Optical storage systems optical disks;
- Aberrations