Phase sensitive heterodyne coherent anti-Stokes Raman scattering micro-spectroscopy and microscopy
US7388668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Nov 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is disclosed for detecting a non-linear coherent field induced in a sample volume. The system includes a first source for generating a first electromagnetic field at a first frequency, a second source for generating a second electromagnetic field at a second frequency, first optics for directing the first and second electromagnetic fields toward the sample volume, second optics for directing the first and second electromagnetic fields toward a local oscillator volume, and an interferometer. The interferometer is for interfering a first scattering field that is generated by the interaction of the first and second electromagnetic fields in the sample volume, with a second scattering field that is generated by the interaction of the first and second electromagnetic fields in the local oscillator volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.