Universal broadband polarizer, devices incorporating same, and method of making same
US7268946B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 10, 2004 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Feb 10, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y20/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarization dependent device suitable for effecting at least one polarization of a broadband portion of electromagnetic radiation incident upon the device is disclosed. This device includes a substrate, and a plurality of regions of differing refractive indices positioned in an alternating manner and substantially adjacent to the substrate to effect the at least one polarization impinging on the regions. The plurality of regions are oriented with respect to the at least one polarization of the broadband portion of the electromagnetic radiation so as to effect the at least one polarization of the broadband portion of the electromagnetic radiation impinging on the regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.