IPERION HSIntegrating Platforms for the European Research Infrastructure ON Heritage Science

Remote Raman/LIF spectroscopy

Raman spectroscopy at low laser intensity is non-invasive and gives very specific molecular characterisation of materials. Remote Raman spectroscopy at standoff distances of up to tens of metres can be used to conveniently analyse any spot on a monument/object from the ground level without having to move the instrument. Given the non-invasive nature of the technique, it can also be used for mapping an area remotely (macro Raman mapping). The same laser that induces Raman scattering will also induce fluorescence which is collected simultaneously. It can be used with complementary techniques such as remote reflectance spectral imaging for a more complete identification of a material.

Fields of application

  • Cultural heritage

    archaeological object and site, architecture, art, decorative arts, manuscript, mosaics, painting, papyrus, sculpture, textile

  • Natural heritage

    fossil, mineral, shell, skeleton


  • inorganic

    ceramics, glass, stone, metal and metallurgical By-Products, pigments

  • organic

    textiles, organic pigments


Remote Raman / LIF system

The remote Raman/LIF system uses continuous wave lasers at 780nm with ~45mW power at the sample. The laser beam is coaxial with the collection optics consisting of a telescope and a spectrometer with a cooled (minimum temperature -90 degrees) detector. The system operates in two modes: 1) collimated laser beam giving a spot size of...