Optical fiber, optical sensor including optical fiber, method of manufacturing optical fiber, and deposition apparatus therefor
US10641951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2018 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Dec 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/088
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an optical fiber including a plasmonic optical filter with a closed curved shape provided at, at least portion thereof. A method of manufacturing the plasmonic optical filter includes a step of exposing a core, a step of forming a thin metal film on the core through physical vapor deposition while rotating the core in a circumferential direction after changing a rotation axis of the core, and a step of patterning nanopatterns on the cylinder-shaped thin metal film using focused ion beam technique assisted with endpoint detection method. Due to such constitutions, an active area to generate an optical signal for optical sensor can be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.