Detecting laser-induced fluorescence emissions
US7609379B2 · kind B2 · utility
13Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Aug 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/6402
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting a chemical element within a material including at least one laser emission means for ionizing part of the material to generate fluorescence; at least one transmitting Bragg grating that filters the wavelength corresponding to the deexcitation wavelength of the element; and at least one photodiode that detects a line corresponding to the filtering wavelength, wherein the at least one Bragg grating is mobile to vary the filtering wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.