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Cleaning graffitis on urban buildings by use of second and third harmonic wavelength of a Nd:YAG laser: A comparative study

Costela, A. / Garcia-Moreno, I. / Gomez, C. / Caballero, O. / Sastre, R.

The present article focuses on the cleaning of graffitis on urban buildings by using laser radiation. A comparison between cleaning results obtained with second and third harmonic wavelengths of a Q-switched Nd:YAG laser is presented. Ablation rate studies have been carried out and elemental analysis by laser-induced breakdown spectroscopy (LIBS) has been applied as a real-time diagnostic technique for the cleaning process, with the aim of preventing potential damage of the surface. To remove graffitis on urban buildings the third harmonic was observed to be the most efficient wavelength, supporting the best result.

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Cleaning graffitis on urban buildings by use of second and third harmonic wavelength of a Nd:YAG laser: A comparative study

Costela, A. / Garcia-Moreno, I. / Gomez, C. / Caballero, O. / Sastre, R.

The present article focuses on the cleaning of graffitis on urban buildings by using laser radiation. A comparison between cleaning results obtained with second and third harmonic wavelengths of a Q-switched Nd:YAG laser is presented. Ablation rate studies have been carried out and elemental analysis by laser-induced breakdown spectroscopy (LIBS) has been applied as a real-time diagnostic technique for the cleaning process, with the aim of preventing potential damage of the surface. To remove graffitis on urban buildings the third harmonic was observed to be the most efficient wavelength, supporting the best result.

Cleaning graffitis on urban buildings by use of second and third harmonic wavelength of a Nd:YAG laser: A comparative study

Costela, A. / Garcia-Moreno, I. / Gomez, C. / Caballero, O. / Sastre, R.

The present article focuses on the cleaning of graffitis on urban buildings by using laser radiation. A comparison between cleaning results obtained with second and third harmonic wavelengths of a Q-switched Nd:YAG laser is presented. Ablation rate studies have been carried out and elemental analysis by laser-induced breakdown spectroscopy (LIBS) has been applied as a real-time diagnostic technique for the cleaning process, with the aim of preventing potential damage of the surface. To remove graffitis on urban buildings the third harmonic was observed to be the most efficient wavelength, supporting the best result.

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Title:

Cleaning graffitis on urban buildings by use of second and third harmonic wavelength of a Nd:YAG laser: A comparative study

Contributors:

Costela, A. (author) / Garcia-Moreno, I. (author) / Gomez, C. (author) / Caballero, O. (author) / Sastre, R. (author)

Published in:

Applied Surface Science ; 207 ; 86-99

Publication date:

2003

Size:

14 Seiten, 31 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0169-4332(02)01241-2

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Neodym-YAG-Laser , Riesenpulslaser , Photoablation , Zweitoberwellenerzeugung , Oberflächenschaden , Gebäude , Oberflächenreinigen

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