Patent ID: 7670758

Claim:
A method, comprising: providing an article that includes a layer comprising a plurality of rows of a metal where each adjacent row of metal is separated by a trench having a depth of about 100 nm or more, the rows of the metal forming a grating having a period of 1,000 nm or less, the layer being a wire grid polarizer for radiation having a wavelength in a range from about 150 nm to about 2,000 nm; filling at least about 80% of a volume of each trench with a second material different from the metal by sequentially forming a plurality of monolayers of the second material within the trenches, wherein: forming the plurality of monolayers of the second material comprises depositing a monolayer of a precursor and exposing the monolayer of the precursor to a reagent to provide a monolayer of the second material; and the second material is an inorganic dielectric material.