Acoustic resonance spectrometry system and method
US10578555B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 19, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jul 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0014
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an acoustic resonance spectrometry system for analysing a sample, which includes an optical pump-probe device adapted to generate a pump beam and a probe beam, the pump beam being consisted of a series of ultra-short pump light pulses having a repetition frequency in the spectral domain of the gigahertz, the pump beam being directed towards an optoacoustic transducer to generate a periodic grating of coherent acoustic phonons in the sample, the probe beam being directed towards the sample to form a scattering beam of the probe beam on the grating of phonons, a frequency variation device being adapted to vary the repetition frequency of the pump beam in a spectral range and a photo-detection system configured to measure a scattering signal as a function of the repetition frequency in the spectral range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.