System and method of analysis by determining a depolarizing or dichroic character of an object
US9835546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/217
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analysis system comprises a transmitting device (1.1) and a receiving device (1.2). The transmitting devices comprises means for illuminating an object (1.3), or a part of the object, by a first light beam (1.8) consisting of signals with two distinct frequencies and first orthogonal polarisation states. The receiving device comprises means (1.6) for detecting, in a second light beam with second polarisation states and resulting from the illumination of the object to be analysed by the first light beam, a signal at a beat frequency equal to a difference between the two frequencies of the first light beam; and means (1.7) for obtaining information relating to the depolarising or dichroic character of the object, or of the part of the object, according to the detection or not of a signal at the beat frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.