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Superficial and Shroud-like coloration of linen by short laser pulses in the vacuum ultraviolet |
Applied Optics, Vol. 51, Issue 36, pp. 8567-8578 (2012)
http://dx.doi.org/10.1364/AO.51.008567
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Abstract
We present a survey on five years of experiments of excimer laser irradiation of linen fabrics, seeking a coloration mechanism able to reproduce the microscopic complexity of the body image embedded onto the Shroud of Turin. We achieved a superficial, Shroud-like coloration in a narrow range of irradiation parameters. We also obtained latent coloration that appears after artificial or natural aging of linen following laser irradiations that, at first, did not generate any visible effect. Most importantly, we have recognized photochemical processes that account for both coloration and latent coloration.
© 2012 Optical Society of America
OCIS Codes
(140.2180) Lasers and laser optics : Excimer lasers
(140.3390) Lasers and laser optics : Laser materials processing
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(350.6670) Other areas of optics : Surface photochemistry
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: July 23, 2012
Revised Manuscript: October 19, 2012
Manuscript Accepted: October 20, 2012
Published: December 14, 2012
Citation
Paolo Di Lazzaro, Daniele Murra, Enrico Nichelatti, Antonino Santoni, and Giuseppe Baldacchini, "Superficial and Shroud-like coloration of linen by short laser pulses in the vacuum ultraviolet," Appl. Opt. 51, 8567-8578 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-36-8567
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