PASSIVE OPTODE OPTICAL SENSOR, PARTICULARLY FOR SPECTROFLUORIMETRY AND RAMAN SPECTROMETRY

摘要

P It comprises a first light guide 14 and a second light guide 22 which surrounds the first. One of the two guides sends on a medium to be analyzed a first excitation light of this medium which then emits a second light. A pierced mirror 38 placed opposite the guides reflects the second light so that it is captured by the other guide, while not allowing the first light to be captured by him. The mirror is also such that in a vicinity of the sensor-medium interface, the closest to the guides, and in any plane section of the medium contained in this vicinity and perpendicular to the guides, the surface traversed by the first light is substantially equal to the one that emits a quantity of second light that is captured by the other guide. / P