Optical data storage and systems utilizing plasmon lenses
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United States of America Patent
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Nov 6, 2007
Grant Date -
Nov 2, 2006
app pub date -
Jun 29, 2006
filing date -
Sep 1, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light-plasmon coupling lens including an optically transparent substrate having a light incident surface and a light-plasmon coupling surface opposite the light incident surface. The light-plasmon coupling surface including at least a set of circular concentric peaks/valleys which form a Fourier sinusoidal pattern in the radial direction of the circular concentric peaks/valleys. A conformal layer of metal is deposited on the light-plasmon coupling surface of the substrate and has aperture at the center of thereof through which plasmons are transmitted. An optical recording medium including a light-plasmon coupling lens.
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