Deep ultraviolet radiation simulates the turin shroud image

Paolo Di Lazzaro, Daniele Murra, Antonino Santoni, Giulio Fanti, Enrico Nichelatti, Giuseppe Baldacchini

Research output: Contribution to journalArticle

8 Citations (Scopus)


The faint yellowed body image embedded into the linen cloth of the Turin Shroud has peculiar chemical and physical char acteristics that at the moment cannot be replicated all together in Iaboratoiy. The authors present experimental results of ArF excimer laser irradiation (wavelength 193 nm) of a raw linen fabric, seeking for coloration similar to that of the Shroud image. The authors achieved a permanent yellow coloration of linen as a threshold ef fect of the laser beam intensity and number of shots. Most impor tant, the authors have achieved for the first time a submicrometer depth of coloration of the outermost part of the fibers, leaving a colorless fiber medulla. The authors also obtained latent coloration that appears after artificial aging of linen following laser irradiations that at first did not generate any visible effect. The authors have recognized different physical and chemical processes involved in both coloration and latent coloration. The comparison of the Turin Shroud image with the results of our ArF laser irradiation shows an interesting overlap of the main physical and chemical features. © 2010 Society for imaging Science and Technology.
Original languageEnglish
Pages (from-to)0403021 - 0403026
Number of pages6
JournalJournal of Imaging Science and Technology
Issue number4
Publication statusPublished - Jul 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Computer Science Applications

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