Electromagnetic wave detector and electromagnetic wave detector array
US9157789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Apr 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1809
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic wave detector that detects incident light by converting the incident light into an electric signal includes a flat metal layer formed on a supporting substrate, an intermediate layer formed on the metal layer, a graphene layer formed on the intermediate layer, isolated metals periodically formed on the graphene layer, and electrodes arranged oppositely on both sides of the isolated metals. Depending on a size of a planar shape of each of the isolated metals, light having a predetermined wavelength at which surface plasmon occurs is determined out of the incident light, and the light having the predetermined wavelength is absorbed to detect a change in the electric signal generated in the graphene layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.