| 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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Siegel, Jan
Consejo Superior de Investigaciones Científicas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Amorphization and Ablation of Crystalline Silicon Using Ultrafast Lasers: Dependencies on the Pulse Duration and Irradiation Wavelengthcitations
- 2024Amorphization and Ablation of Crystalline Silicon Using Ultrafast Lasers: Dependencies on the Pulse Duration and Irradiation Wavelengthcitations
- 2024Optoplasmonic tuneable response by femtosecond laser irradiation of glass with deep-implanted gold nanoparticles
- 2024Optoplasmonic tuneable response by femtosecond laser irradiation of glass with deep-implanted gold nanoparticles
- 2022Propagation dynamics of the solid–liquid interface in Ge upon ns and fs laser irradiationcitations
- 2022Mechanisms driving self-organization phenomena in random plasmonic metasurfaces under multipulse femtosecond laser exposure: a multitime scale studycitations
- 2021Anisotropic Resistivity Surfaces Produced in ITO Films by Laser‐Induced Nanoscale Self‐organizationcitations
- 2021Deep surface amorphization in silicon induced by spectrally-tuned ultrashort laser pulses
- 2020The Role of the Laser-Induced Oxide Layer in the Formation of Laser-Induced Periodic Surface Structurescitations
- 2019Surface Plasmon Polaritons on Rough Metal Surfaces: Role in the Formation of Laser-Induced Periodic Surface Structurescitations
- 2018Biomimetic surface structures in steel fabricated with femtosecond laser pulses: influence of laser rescanning on morphology and wettabilitycitations
- 2018Author Correction: Coherent scatter-controlled phase-change grating structures in silicon using femtosecond laser pulsescitations
- 2018Controlling the Wettability of Steel Surfaces Processed with Femtosecond Laser Pulsescitations
- 2018Optical spectroscopy study of nano- and microstructures fabricated by femtosecond laser pulses on ZnO based systemscitations
- 2017Coherent scatter-controlled phase-change grating structures in silicon using femtosecond laser pulsescitations
- 2014Origin of the refractive index modification of femtosecond laser processed doped phosphate glasscitations
- 2013Nanostructuring thin polymer films with optical near fieldscitations
- 2011Dynamics of laser-induced phase switching in GeTe filmscitations
- 2009Hot-wire chemical vapor growth and characterization of crystalline GeTe filmscitations
- 2008Amorphization dynamics of Ge2 Sb2 Te5 films upon nano- and femtosecond laser pulse irradiationcitations
- 2008Time- and space-resolved dynamics of ablation and optical breakdown induced by femtosecond laser pulses in indium phosphidecitations
- 2006Time- and space-resolved dynamics of melting, ablation, and solidification phenomena induced by femtosecond laser pulses in germaniumcitations
- 2005Imaging the dissociation processs of O2 background gas during pulsed laser ablation of LiNbO3citations
- 2004Rewritable phase-change optical recording in Ge₂Sb₂Te₅ films induced by picosecond laser pulsescitations
Places of action
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article
Mechanisms driving self-organization phenomena in random plasmonic metasurfaces under multipulse femtosecond laser exposure: a multitime scale study
Abstract
International audience ; Laser-induced transformations of plasmonic metasurfaces pave the way for controlling their anisotropic optical response with a micrometric resolution over large surfaces. Understanding the transient state of matter is crucial to optimize laser processing and reach specific optical properties. This article proposes an experimental and numerical study to follow and explain the diverse irreversible transformations encountered by a random plasmonic metasurface submitted to multiple femtosecond laser pulses at a high repetition rate. A pump-probe spectroscopic imaging setup records pulse after pulse, and with a nanosecond time resolution, the polarized transmission spectra of the plasmonic metasurface, submitted to 50,000 ultrashort laser pulses at 75 kHz. The measurements reveal different regimes, occurring in different ranges of accumulated pulse numbers, where successive self-organized embedded periodic nanostructures with very different periods are observed by post-mortem electron microscopy characterizations. Analyses are carried out; thanks to laserinduced temperature rise simulations and calculations of the mode effective indices that can be guided in the structure. The overall study provides a detailed insight into successive mechanisms leading to shape transformation and self-organization in the system, their respective predominance as a function of the laser-induced temperature relative to the melting temperature of metallic nanoparticles and their kinetics. The article also demonstrates the dependence of the self-organized period on the guidedmode effective index, which approaches a resonance due to system transformation. Such anisotropic plasmonic metasurfaces have a great potential for security printing or data storage, and better understanding their formation opens the way to smart optimization of their properties.