The use of laser in the conservation of cultural heritage is now generalized to all types of heritage, from historic buildings to archaeological sites to collections and individual artefact present in public museums or private collections.

The range of devices using a laser beam is very large so is their uses, from documentation (metric surveys…) to material analyses to conservation (cleaning…). Data produced through laser technologies enable to create new information supports changing dissemination and education practices. By producing digital information, laser technologies have also induced new professional practices.

The aim of Lacona XII is to welcome the widest range of academics and conservation professionals to encourage the development of new approaches and new strategies using current and innovative laser technologies. Abstracts should be submitted in one or more of the following five themes. In all themes, presentation of cases studies are welcomed.

• Documentation and data collection
  o   2D/3D documentation of objects and sites
  o   Stratigraphic and depth-resolved methods
  o   Holography
  o   Interferometry

• Analysis and diagnosis
  o   Raman spectroscopy
  o   Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)
  o   Laser-Induced Fluorescence spectroscopy (LIF) and Fluorescence Lifetime Imaging (FLIM)
  o   Advanced non-linear imaging microscopy
  o   Terahertz spectroscopy and imaging

• Conservation
  o   Laser cleaning
  o   Unwanted substances removal or material modification by laser
  o   Stimulated Infra-Red Thermography
  o   Vibrometry

• Innovative technologies and changing practices
  o   New laser spectroscopic techniques
  o   New imaging techniques

• Dissemination and education
  o  3D/2D laser printing
  o  3D digital modelling