Laser-induced fluorescence spectra detected with high-spectral-resolution lidar on the facades of the Baptistery and the Cathedral in Parma are presented and discussed. The data show fluorescence features that are due to the stone materials that constitute the coating of the monuments and to photosynthetically active colonizations on their surfaces. This underlines the feasibility of a remote fluorescence analysis of historic facades. The data were also compared with the fluorescence lidar spectra obtained from similar lithotypes, sampled either in historic extraction areas or in sites exploited recently. The results open good prospects for spectral characterization of historic materials and identification of their provenance.
© 1998 Optical Society of America
Original Manuscript: May 1, 1997
Revised Manuscript: July 25, 1997
Published: February 20, 1998
Valentina Raimondi, Giovanna Cecchi, Luca Pantani, and Roberto Chiari, "Fluorescence lidar monitoring of historic buildings," Appl. Opt. 37, 1089-1098 (1998)