Patent ID: 9632224
Date: 2017-04-25
CPC Classifications: G02B,G03B,H04N

Claim:
1. A broadband, selectively-absorptive wire grid polarizer (WGP) comprising an array of parallel, elongated rods located over a surface of a transparent substrate with gaps between adjacent rods, each of the rods including a reflective wire and two absorptive ribs, wherein: a. the reflective wire is sandwiched between the two absorptive ribs and the substrate or the two absorptive ribs are sandwiched between the reflective wire and the substrate; b. each of the two absorptive ribs comprises a different material; c. the two absorptive ribs include a first absorptive rib having a first material with a first thickness and a second absorptive rib having a second material with a second thickness; d. the first material with the first thickness has a wavelength (λ e. the second material with the second thickness has a wavelength (λ f. 50 nanometers<|λ