Title :
Remote laser-induced fluorescence imaging for assessment of cultural heritage
Author :
Grönlund, Rasmus ; Svanberg, Sune ; Hällström, Jenny ; Barup, Kerstin
Author_Institution :
Atomic Phys. Div., Lund Inst. of Technol.
Abstract :
In this paper, we propose to perform remote laser-induced fluorescence imaging for assessment of cultural heritage. The experiments are performed using the lidar system consist of frequency-tripled Nd:YAG laser at 355 nm with a spot size of ~4 cm diameter and the signal is collected using a coaxial 40-cm-diameter Newtonian telescope. The fluorescence light is focused into an optical fibre and guided a time-gated optical multichannel analyser system, where the fluorescence spectrum is recorded. Then the laser directed to the next point and thus a fluorescence image can be produced
Keywords :
fluorescence; history; neodymium; optical fibres; optical harmonic generation; optical images; optical radar; pulse height analysers; remote sensing by laser beam; solid lasers; telescopes; 355 nm; 40 cm; Newtonian telescope; YAG:Nd; YAl5O12:Nd; cultural heritage assessment; frequency-tripled Nd:YAG laser; lidar system; optical fibre; remote laser-induced fluorescence imaging; time-gated optical multichannel analyser system; Coaxial components; Cultural differences; Fiber lasers; Fluorescence; Focusing; Frequency; Laser radar; Optical fibers; Optical imaging; Telescopes;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Conference_Location :
Munich
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568461
