Selectively absorptive wire-grid polarizer

Optical: systems and elements – Polarization without modulation – Polarization by reflection or refraction

Reexamination Certificate

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C359S576000

Reexamination Certificate

active

07961393

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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