Publication
Ultrafast laser interaction with transparent multi-layer SiO2/Si3N4 films
Publications associées (36)
On the interaction of femtosecond laser pulses with layered dielectric materials
Materials properties are strictly dependent on their microstructure. The internal symmetries and the disposition of the constituting atoms of a material, which depend on its crystallographic structure, greatly affect its response to mechanical, electromagn ...
EPFL2023Femtosecond laser-shockwave induced densification in fused silica
Yves Bellouard, Pieter Vlugter, Arunkrishnan Radhakrishnan, Julien Gilles Edgar Gateau
A tightly focused femtosecond laser-beam in the non-ablative regime can induce a shockwave sufficiently intense to reach local pressures in the giga-Pascal range or more. In a single beam configuration, the location of the highest-pressure zone is nested w ...
2022Defect formation and mitigation during laser powder bed fusion of copper
Additive manufacturing (AM) is a group of processing technologies which has the potential to revolutionize manufacturing by allowing easy manufacturing of complex shapes and small series. One AM-method which is of high interest for processing of metals is ...
EPFL2021Investigation of photoinduced effects in plasmonic nanocavities
Light matter interaction can be boosted by several orders of magnitude by tailoring the photonic environment, thus enabling a wide range of applications. One particular example are plasmonic nanostructures that support localized surface plasmon polariton ( ...
EPFL2021Elastic properties of self-organized nanogratings produced by femtosecond laser exposure of fused silica
Yves Bellouard, Pieter Vlugter
Under certain exposure conditions, a femtosecond laser beam focused in the bulk of fused silica leads to the formation of self-organized structures consisting of a series of “nanolayers,” parallel to one another. Remarkably, this laser-induced nanoscale an ...
2020Integrated Si3N4 Soliton Microcomb Driven by a Compact Ultra-low-noise Laser
Tobias Kippenberg, Rui Ning Wang, Nicolas Volet, Junqiu Liu, Erwan Guillaume Albert Lucas, Arslan Sajid Raja, Jijun He
We generate 100-GHz soliton microcombs in a photonic integrated high-Q Si3N4 microresonator using an ultra-compact, high-power and low-frequency-noise semiconductor-based laser. The soliton is initiated via direct current tuning of the laser. (C) 2019 The ...
IEEE2019Non-contact femtosecond laser-based methods for investigating glass mechanics at small scales
With the progress made in miniaturizing systems over the last decades, understanding materialsâ behavior at small scales has become a necessity.
In this context, glass behavior has remained largely unknown, partly for technological reasons and partly due ...
EPFL2018