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US07961393B2 Selectively absorptive wire-grid polarizer 有权
选择性吸收线栅偏振器

Selectively absorptive wire-grid polarizer
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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