Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid
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United States of America Patent
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Oct 12, 2010
Grant Date -
Jul 2, 2009
app pub date -
Mar 9, 2009
filing date -
Dec 6, 2004
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Abstract
A multilayer wire-grid polarizer for polarizing light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having lengths longer than a wavelength of the light and 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.
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