System for performing optical spectroscopy including interferometer
US9341516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/4535
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for performing optical spectroscopy measurements includes a light source for generating an input optical beam and an interferometer. The interferometer includes a beam splitter that splits the input optical beam into first and second light beams; a first light path that directs the first light beam through a sample containing an analyte to a first output port; and a second light path that directs the second light beam to the first output port. At least one of the first and second light paths adjusts a relative phase of a corresponding one of the first and second light beams, so that the first and second light beams are out of phase at the first output port, substantially canceling background light and outputting sample light corresponding to a portion of the first light signal absorbed by the sample in the sample cell. A detection system detects the output sample light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.