Method and device for very high sensitivity electron spin resonance spectroscopy
US10422838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2016 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Oct 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for detecting and characterising electron spins in a sample includes an electromagnetic microresonator, having a resonant frequency cor in the microwave range and a quality factor Q and into which the sample is inserted; a device for creating a magnetic field B0 in the sample for bringing a spin transition frequency cos into resonance with the resonant frequency cor, such that cos=γB0, where γ is a gyromagnetic factor of the spins; a spin detection device receiving signals from the electromagnetic microresonator associated with the sample and including at least one low-noise amplifier operating at a temperature of between 1 and 10 K and a series of amplifiers and a demodulator operating at ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.