Laser-induced fluorescence (LIF) or laser-stimulated fluorescence (LSF) is a spectroscopic method in which an atom or molecule is excited to a higher energy level by the absorption of laser light followed by spontaneous emission of light.
archaeological object and site, architecture, art, decorative arts, film, mosaics, painting, sculpture, textile
fossil, mineral, shell, skeleton
ceramic (clay/mud brick/terracotta/earthenware/stoneware/porcelain), glass, stone, metal and metallurgical By-Products, pigment
binding media, glues, wood, paper, textiles, varnishes
The instrument is a laboratory compact hybrid Raman-LIF-LIBS system based on the excitation of the three types of spectroscopic signals with a Q-Switched Nd:YAG laser (LS-2147, Lotis II) operating at 532, 355 or 266 nm, at a repetition rate of 10 Hz and delivering pulses of 17 ns with Gaussian-like spatial profile. The linearly polarized...