Method and device for analysing a sample, implementing a resonant support
US12072282B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 4, 2020 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | May 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/5957
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for analysing a sample uses a resonant support having a surface on which a plurality of separated photonic crystals extends. At least two crystals are configured to capture the same analyte. A resonance wavelength associated with each crystal varies with an amount of analyte in contact with the crystal. The wavelengths define a resonance spectral band between 200-1500 nm. The transmission/reflection of the light is maximum at an associated resonance wavelength. The method includes: illuminating the support in the resonance spectral band, the intensity of the lamination being variable in band; acquiring a measurement image using an image sensor, the image having different regions-of-interest each optically coupled to a photonic crystal; using a reference image representative of an image acquired by the image sensor, when the support is illuminated in the resonance spectral band in a reference configuration; and comparing the measurement image with the reference image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.