Wide-field imaging using nitrogen vacancies
US9766181B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6421
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Nitrogen vacancies in bulk diamonds and nanodiamonds can be used to sense temperature, pressure, electromagnetic fields, and pH. Unfortunately, conventional sensing techniques use gated detection and confocal imaging, limiting the measurement sensitivity and precluding wide-field imaging. Conversely, the present sensing techniques do not require gated detection or confocal imaging and can therefore be used to image temperature, pressure, electromagnetic fields, and pH over wide fields of view. In some cases, wide-field imaging supports spatial localization of the NVs to precisions at or below the diffraction limit. Moreover, the measurement range can extend over extremely wide dynamic range at very high sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.