A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison
Апстракт
Application of non-contact and rapid laser technique, which is minimally invasive, non-contaminant and efficient method, for ancient glass investigation and cleaning is highly desirable for restoration purposes. Irradiation of Roman glass dated from 1st to 4th/5th century AD with TEA CO2 (wavelength 10.6 mu m; pulse duration t(p) = 100 ns), Nd:YAG (wavelength 1064 nm and 532 nm; t(p)= 150 ps) and ruby laser (wavelength 694 nm; t(p) = 30 ns) in air ambience was studied. For all three lasers, moderate energy densities (15-30 J/cm(2)) induced significant changes of morphology - from superficial exfoliation and occurrence of mosaic structure after few pulses to deep damages and hydrodynamic features after higher number of accumulated shots. Irradiation with moderate energy density, accompanied with plasma appearance in front of the samples, is convenient for numerous potential applications, particularly surface elemental analysis such as laser induced breakdown spectroscopy. On the other h...and, lower densities are more suitable for Roman glass cleaning. Calculations of Roman glass surface temperature have shown that pulsed CO2 laser is favorable for surface cleaning and optimal fluence is similar to 2 J/cm(2). This was confirmed by additional experiments for fluences 1.5 and 3 J/cm(2). Morphological changes on the Roman glass surface induced by lasers were studied by optical microscopy (OM) and scanning electron microscopy (SEM). The composition of Roman glass was determined by energy dispersive X-ray analysis (EDX) and inductively coupled plasma (ICP) method. Chemical analysis confirmed that the investigated glass dates from the Roman period. (C) 2012 Elsevier B.V. All rights reserved.
Кључне речи:
Roman glass / Surface modification / Pulsed lasers / Morphological and chemical changes / PlasmaИзвор:
Journal of Non-crystalline Solids, 2012, 358, 22, 3048-3056Финансирање / пројекти:
- Примена савремених мерних и прорачунских техника за изучавање струјних параметара вентилационих система на моделу енергетски изузетно ефикасног (пасивног) објекта (RS-MESTD-Technological Development (TD or TR)-35046)
- Ministry of Culture, Information and Information Society of Republic of Serbia [633-00-373]
DOI: 10.1016/j.jnoncrysol.2012.07.034
ISSN: 0022-3093
WoS: 000310047100018
Scopus: 2-s2.0-84866124522
Колекције
Институција/група
VinčaTY - JOUR AU - Polic-Radovanovic, S. AU - Ristic, S. AU - Stašić, Jelena AU - Trtica, Milan PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4359 AB - Application of non-contact and rapid laser technique, which is minimally invasive, non-contaminant and efficient method, for ancient glass investigation and cleaning is highly desirable for restoration purposes. Irradiation of Roman glass dated from 1st to 4th/5th century AD with TEA CO2 (wavelength 10.6 mu m; pulse duration t(p) = 100 ns), Nd:YAG (wavelength 1064 nm and 532 nm; t(p)= 150 ps) and ruby laser (wavelength 694 nm; t(p) = 30 ns) in air ambience was studied. For all three lasers, moderate energy densities (15-30 J/cm(2)) induced significant changes of morphology - from superficial exfoliation and occurrence of mosaic structure after few pulses to deep damages and hydrodynamic features after higher number of accumulated shots. Irradiation with moderate energy density, accompanied with plasma appearance in front of the samples, is convenient for numerous potential applications, particularly surface elemental analysis such as laser induced breakdown spectroscopy. On the other hand, lower densities are more suitable for Roman glass cleaning. Calculations of Roman glass surface temperature have shown that pulsed CO2 laser is favorable for surface cleaning and optimal fluence is similar to 2 J/cm(2). This was confirmed by additional experiments for fluences 1.5 and 3 J/cm(2). Morphological changes on the Roman glass surface induced by lasers were studied by optical microscopy (OM) and scanning electron microscopy (SEM). The composition of Roman glass was determined by energy dispersive X-ray analysis (EDX) and inductively coupled plasma (ICP) method. Chemical analysis confirmed that the investigated glass dates from the Roman period. (C) 2012 Elsevier B.V. All rights reserved. T2 - Journal of Non-crystalline Solids T1 - A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison VL - 358 IS - 22 SP - 3048 EP - 3056 DO - 10.1016/j.jnoncrysol.2012.07.034 ER -
@article{ author = "Polic-Radovanovic, S. and Ristic, S. and Stašić, Jelena and Trtica, Milan", year = "2012", abstract = "Application of non-contact and rapid laser technique, which is minimally invasive, non-contaminant and efficient method, for ancient glass investigation and cleaning is highly desirable for restoration purposes. Irradiation of Roman glass dated from 1st to 4th/5th century AD with TEA CO2 (wavelength 10.6 mu m; pulse duration t(p) = 100 ns), Nd:YAG (wavelength 1064 nm and 532 nm; t(p)= 150 ps) and ruby laser (wavelength 694 nm; t(p) = 30 ns) in air ambience was studied. For all three lasers, moderate energy densities (15-30 J/cm(2)) induced significant changes of morphology - from superficial exfoliation and occurrence of mosaic structure after few pulses to deep damages and hydrodynamic features after higher number of accumulated shots. Irradiation with moderate energy density, accompanied with plasma appearance in front of the samples, is convenient for numerous potential applications, particularly surface elemental analysis such as laser induced breakdown spectroscopy. On the other hand, lower densities are more suitable for Roman glass cleaning. Calculations of Roman glass surface temperature have shown that pulsed CO2 laser is favorable for surface cleaning and optimal fluence is similar to 2 J/cm(2). This was confirmed by additional experiments for fluences 1.5 and 3 J/cm(2). Morphological changes on the Roman glass surface induced by lasers were studied by optical microscopy (OM) and scanning electron microscopy (SEM). The composition of Roman glass was determined by energy dispersive X-ray analysis (EDX) and inductively coupled plasma (ICP) method. Chemical analysis confirmed that the investigated glass dates from the Roman period. (C) 2012 Elsevier B.V. All rights reserved.", journal = "Journal of Non-crystalline Solids", title = "A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison", volume = "358", number = "22", pages = "3048-3056", doi = "10.1016/j.jnoncrysol.2012.07.034" }
Polic-Radovanovic, S., Ristic, S., Stašić, J.,& Trtica, M.. (2012). A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison. in Journal of Non-crystalline Solids, 358(22), 3048-3056. https://doi.org/10.1016/j.jnoncrysol.2012.07.034
Polic-Radovanovic S, Ristic S, Stašić J, Trtica M. A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison. in Journal of Non-crystalline Solids. 2012;358(22):3048-3056. doi:10.1016/j.jnoncrysol.2012.07.034 .
Polic-Radovanovic, S., Ristic, S., Stašić, Jelena, Trtica, Milan, "A study of Roman glass from Mala Barutana/Belgrade Fortress irradiated with pulsed CO2, Nd:YAG and ruby laser - Comparison" in Journal of Non-crystalline Solids, 358, no. 22 (2012):3048-3056, https://doi.org/10.1016/j.jnoncrysol.2012.07.034 . .