Selectively absorptive wire-grid polarizer
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United States of America Patent
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Jun 14, 2011
Grant Date -
Nov 13, 2008
app pub date -
Jun 22, 2007
filing date -
Dec 6, 2004
priority date (Note) -
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Abstract
A selectively absorptive, mulitlayer wire-grid polarizer for polarizing incident light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having a period less than half the wavelength of the light. One of the layers can include a thin film layer with a refractive index greater than a refractive index of the substrate. One of the thin film layers can include a dielectric array of non-metal elements. One of the layers includes a material that is optically absorptive to the incident light.
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