Waveguide sensor with nanoporous surface layer
US10197499B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2016 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Dec 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A waveguide sensor system is provided. The system includes a light source and a waveguide formed from a light transmitting material. Light from the light source enters the waveguide at an input area and travels within the waveguide by total internal reflection to an analyte area and light to be analyzed travels within the waveguide from the analyte area by total internal reflection to an output area. An optical sensor is coupled to the output area and is configured to interact with the light to be analyzed. The system includes a plurality of pores located along the outer surface within the analyte area and formed in the light transmitting material of the waveguide, and the pores are configured to enhance light interaction with the analyte within the analyte area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.