Optical sensing and separation based on ordered 3D nanostructured surfaces
US10190978B2 · kind B2 · utility
1Cited by
6References
24Claims
0Family size
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Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3581
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor having a substrate is provided in which structures are disposed on a surface of the substrate. The structures can be, e.g., nanostructures. Polarized light is directed toward the sensor, and birefringence of the structures with respect to the light is measured. Target particles that interact with the structures are detected based on changes in the measured birefringence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.