EP 1794648 A1 20070613 - DETECTING LASER-INDUCED FLUORESCENCE EMISSIONS
Title (en)
DETECTING LASER-INDUCED FLUORESCENCE EMISSIONS
Title (de)
DETEKTION VON LASERINDUZIERTEN FLUORESZENZEMISSIONEN
Title (fr)
DETECTION DES EMISSIONS DE FLUORESCENCE INDUITE PAR UN LASER
Publication
Application
Priority
- FR 2005002419 W 20050930
- FR 0452235 A 20041001
Abstract (en)
[origin: WO2006037879A1] The invention concerns the field of tools for determining a sample chemical composition. More particularly, the invention concerns an improvement in detecting chemical elements in a sample by laser-induced fluorescence (LIF). The invention concerns a system for detecting a chemical element within a material comprising at least one laser emission for ionizing part of said material to generate fluorescence, at least one transmitting Bragg grating for filtering the wavelength corresponding to the deexcitation wavelength of said element and at least one photodiode for detecting the line corresponding to said filtering wavelength. The invention is characterized in that said at least one Bragg grating is mobile so as to vary said filtering wavelength.
IPC 8 full level
G02F 1/29 (2006.01); G01J 3/18 (2006.01); G01N 21/64 (2006.01)
CPC (source: EP US)
G01J 3/02 (2013.01 - EP US); G01J 3/0218 (2013.01 - EP US); G01J 3/18 (2013.01 - EP US); G01J 3/4406 (2013.01 - EP US); G01N 21/6402 (2013.01 - EP US)
Citation (search report)
See references of WO 2006037879A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2876185 A1 20060407; FR 2876185 B1 20080111; EP 1794648 A1 20070613; JP 2008514944 A 20080508; US 2008084562 A1 20080410; US 7609379 B2 20091027; WO 2006037879 A1 20060413
DOCDB simple family (application)
FR 0452235 A 20041001; EP 05807791 A 20050930; FR 2005002419 W 20050930; JP 2007534050 A 20050930; US 66443205 A 20050930