| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Girard, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024β-rays induced displacement damage on epitaxial 4H-SiC revealed by exciton recombinationcitations
- 2024β -rays induced displacement damage on epitaxial 4H-SiC revealed by exciton recombinationcitations
- 2024Characterization of Radiophotoluminescence Dosimeters Under X-Ray Irradiation at High Dosescitations
- 2023Vulnerability of epitaxial layers and substrates of 4H-SiC to ionizing radiation and thermal treatments
- 2020Transient and Steady-State Radiation Response of Phosphosilicate Optical Fibers: Influence of H2 Loadingcitations
- 2019Near-IR- and UV-femtosecond laser waveguide inscription in silica glassescitations
- 2018Confocal-micro-luminescence characterization of femtosecond laser irradiated silica and borosilicate glassescitations
- 2017Potential of copper- and cerium-doped optical fiber materials for proton beam monitoringcitations
- 2012Thermal bleaching of gamma-induced-defects in optical fibers
- 2011X-ray irradiation effects on a multistep Ge-doped silica fiber produced using different drawing conditionscitations
- 2009Optical properties of phosphorous-related point defects in silica fiber preformscitations
- 2009Optical properties of phosphorus-related point defects in silica fiber preformscitations
- 2005Doppler velocimetry using self-mixing effect in a short Er-Yb-doped phosphate glass fiber lasercitations
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article
Confocal-micro-luminescence characterization of femtosecond laser irradiated silica and borosilicate glasses
Abstract
International audience ; In the present experimental investigation we report a confocal micro-luminescence study of pure silica and borosilicate BK7 glass surfaces, irradiated with focused femtosecond laser pulses. For both glasses we detect several luminescence signals. In the case of the pure silica the emission of the NBOHC (Non-Bridging Oxygen Hole Centers) is detected in the non-ablated and non-densified regions, these defects are metastable (the signal almost disappears after one month from the irradiation). In ablated zones, under excitation at 633 nm, we detected at least an other metastable signal in time and a 550 nm emission, under excitation at 325 nm, which was previously detected in bulk when the refractive index decreases. In the case of BK7 a signal with a maximum at 565 nm is detected in non-ablated zones, this emission is present both in regions with increased and unchanged refractive indexes. In ablated zones we detected other signals in the range 650–700 nm, which exhibit relevant spectral modifications of the signal near the ablation conditions. The combined study and the 3-dimensional characterization of such emissions appear to be useful candidates for a deeper understanding of the ultrafast laser matter interaction, allowing a better characterization of the defect generation dependence as a function of laser fluence, number of pulses and wavelength.