METHODS OF MAKING WIRE GRID OPTICAL ELEMENTS BY PREFERENTIAL DEPOSITION OF MATERIAL ON A SUBSTRATE

摘要

A method for making wire grid optical elements by preferentially depositing material on a substrate (220) is disclosed. Material can be preferentially deposited by directing an electromagnetic interference pattern (210) on to a substrate (220) to selectively heat areas of the substrate coincident with the interference pattern maxima (212). The substrate can then be exposed to gas phase material (218) that is capable of preferentially accumulating on surfaces based on surface temperature. Light polarizing, infrared reflecting wire grid optical elements are manufactured by a double deposition step.