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US 7,609,379 B2Granted
Detecting laser-induced fluorescence emissions
AssigneeCentre National de la Recherche Scientifique (CNRS)
InventorsLionel Canioni, Stéphane Santran, Bruno Bousquet
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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.
Claims10
A system for detecting a chemical element within a material comprising:
- 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.
1 more element
Dependencies are inferred from the claim text.