Medical sensor having a nanoscale tapered waveguide for spectroscopy-based analysis of fluid
US11154226B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 10, 2016 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12107
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A medical sensor is described. In an example, the medical sensor includes a nanoscale tapered waveguide attached to a substrate. The nanoscale tapered waveguide includes a nanoscale channel that receives fluid and an excitation light and that outputs a response light. The excitation light propagates through the fluid. A receiving channel of the nanoscale channel is configured as a waveguide that receives and guides the excitation to a linearly tapered channel of the nanoscale channel. The linearly tapered channel has three dimensional linear tapering that focuses the excitation light guided from the receiving channel into an optical response channel of the nanoscale channel. In turn, the optical response channel is configured as a waveguide that outputs a response light in response to the excitation light focused from the linearly tapered channel. The response light corresponds to a response of an analyte of the fluid present in the optical response channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.