TITLE

Cu-Si bilayers as storage medium in optical recording

AUTHOR(S)
Kuiper, A. E. T.; Vullers, R. J. M.; Pasquariello, D.; Naburgh, E. P.
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/30/2005, Vol. 86 Issue 22, p221921
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Instead of a phase change or a dye layer, a Cu/Si bilayer can be applied as the recording medium in a write-once Blu-ray Disc. The write process basically comprises the formation of a CuSi alloy containing 25–30 at. % Si, while any excess of Si is left behind as unreacted film. Auger analyses of the laser-written layers indicate that recording consists primarily of the diffusion of Si into Cu. The data allow for discrimination between the various models presented in literature for Cu/Si-based recording and to optimize the stack. Very low jitter levels of typically 4% proved to be achievable with equally thick films of Cu and Si as recording medium.
ACCESSION #
17249904

 

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