Generating optical contrast using thin layers
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United States of America Patent
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Issued Date -
Apr 26, 2007
app pub date -
Oct 20, 2005
filing date -
Oct 20, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A recordable medium includes a recordable structure having a first layer and a second layer in which the first and second layers do not completely overlap, and the first and second layers combine upon application of a write power to cause a change in an optical property of the recordable structure with respect to a read beam. In some examples, at least one of the first and second layers includes discontinuous regions. In some examples, at least one of the first and second layers includes a contiguous region having a shape that forms holes. In some examples, the Debye length of at least one of the first and second layers is less than 5 nm, the Debye length being determined based on a charge carrier density in the layer.
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