COMPRESSIBLE PHOTONIC CRYSTAL-BASED AUTHENTICATION DEVICE
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United States of America Patent
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Issued Date -
Jan 3, 2013
app pub date -
Nov 17, 2009
filing date -
Nov 18, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A security and/or authentication device comprising: a compressible photonic crystal having an ordered array of voids, the photonic crystal having a reflection peak, wherein compression against at least a portion photonic crystal results in a decrease of intensity of the reflection peak in at least that portion.
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