Ultra-sensitive electric field detection device
US8582929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Dec 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electric field detection device. In one embodiment, the electric field detection device includes an interferometer having a reference arm and an active arm. The reference arm comprises a first electro-optic waveguide. The active arm comprises a first electrically conductive plate, a second electrically conductive plate spaced apart from the first electrically conductive plate defining a first gap therebetween, a third electrically conductive plate disposed in the first gap and vertically extending from the first electrically conductive plate to define a T-shape structure and a second gap between the third electrically conductive plate and the second electrically conductive plate, where the second gap is substantially smaller than the first gap; and a second electro-optic waveguide disposed in the second gap and being in electrical communication with the second and third electrically conductive plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.