Multi-layered transmissive disc: an alternative to holography
Source abstract
Abstract
Volume recording is the key to increase optical storage density. Disc transparency requires the pits of each layer to generate very small phase shift to the transmitted beam. Readout of very shallow phase shift has been proven possible, and new tracking methods have been designed. We showed that focused recording can work up to a few hundred layers with good power efficiency and realistic optical design; this should pave the way up to multi-terabyte optical disc.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Phase-change materials and chalcogenides · Semiconductor Lasers and Optical Devices · Magnetic properties of thin films
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References (3)
Show source-provided references
1. Bouwhuis, et al., Principles of Optical Disc Systems, A. Hilger, p. 85.
2. J.W. Goodmann, Statistical Optics, Wiley, New York, p. 85.
3. K. Osato, Progress in optical disk recording Optical Data Storage ’00, Whistler, BC.