US Patent:
20160231487, Aug 11, 2016
Inventors:
- Orem UT, US
Bin Wang - Lindon UT, US
Matt George - Murray UT, US
Paul Steven Mills - Orem UT, US
Arash Farhang - Salt Lake City UT, US
International Classification:
G02B 5/30
G02B 27/00
Abstract:
An embedded, inverse wire-grid polarizer (WGP) includes ribs 13 located over a surface of a transparent substrate 11, gaps 16 between the ribs 13, and a fill-layer 15 substantially filling the gaps 16. The fill-layer has a relatively high index of refraction, such as greater than . At a wavelength of light incident upon the WGP, E transmission can be greater than E transmission. E is a polarization of light with an electric field oscillation parallel to a length L of the ribs, and E is a polarization of light with an electric field oscillation perpendicular to a length L of the ribs. This embedded, inverse WGP is especially useful for polarizing, with high WGP performance, small wavelength (high-energy) regions of the electromagnetic spectrum (e.g. UV) which are difficult to polarize with conventional WGPs (E transmission>E transmission).