Optical detector
US11573125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Aug 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4295
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the present disclosure generally relate to apparatus for and methods of detecting light utilizing the spin Seebeck effect (SSE). In an embodiment, a method for detecting broadband light is provided. The method includes generating a SSE in a device by illuminating the device with light, the device comprising a bilayer structure disposed over a substrate, the bilayer structure comprising a non-magnetic metal layer and a magnetic insulator layer. The method further includes measuring the SSE based on a field modulation method, determining, based on the measuring, an optically-created thermal gradient of the device, and detecting a wavelength range of the light. Apparatus for detecting broadband light are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.