Vertical plasmonic Mach-Zehnder interferometer
US8649014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Aug 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7779
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical device includes first and second optical branches. The first optical branch is formed at an interface between a first substrate and a second substrate, and the second optical branch is formed at an interface between the second substrate and an ambient medium. The second substrate defines first and second spaced apart slits that are each coupled to the first and second optical branches. The first slit is configured to receive at least partially coherent light from a light source and in response excite at least one surface plasmon polariton mode in each of the first and second optical branches. The second slit is configured to combine the surface plasmon polariton modes received from the first and second optical branches and emit scattered light into at least one of the first substrate and the ambient medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.