LASER SPECTROSCOPY DEVICE

摘要

The invention relates to a laser spectroscopy device that comprises a laser (10) providing a laser beam (11) and a means for focusing said beam onto the surface of a sample (19) to be analysed including an optical fibre (15). The device successively comprises: a diaphragm (12) for sampling a portion of the laser beam; a means (13) for re-imaging said diaphragm on the input of an optical fibre with an input magnification Ge so that the image thus obtained has a size equal to or slightly smaller than the size of the core of the optical fibre; means (16, 17) for imaging the output of the fibre on the surface of the sample with an output magnification Gs.