Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes Raman scattering
US7586618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of examining a sample comprises exposing the sample to a pump pulse of electromagnetic radiation for a first period of time, exposing the sample to a stimulant pulse of electromagnetic radiation for a second period of time which overlaps in time with at least a portion of the first exposing, to produce a signal pulse of electromagnetic radiation for a third period of time, and interfering the signal pulse with a reference pulse of electromagnetic radiation, to determine which portions of the signal pulse were produced during the exposing of the sample to the stimulant pulse. The first and third periods of time are each greater than the second period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.