Ultrafast Laser Nanostructuring
The Pursuit of Extreme Scales
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Article
First-principles study of ultrafast bandgap dynamics in laser-excited \(\alpha\) -quartz
Femtosecond-laser-induced evolution of \(\alpha\) α -quartz bandgap was calc...
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Chapter
Ultrafast Laser Volume Nanostructuring of Transparent Materials: From Nanophotonics to Nanomechanics
The capability of ultrashort laser pulses to generate nonlinear absorption in the transparency window of dielectric materials is at the base of volume structuring. The result is a local change of the refractiv...
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Book
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Chapter
Nanoscale Sampling of Optical Signals: Application to High-Resolution Spectroscopy
Direct laser writing is a powerful technique for the development of photonic devices, namely, by allowing 3D structuring and generation of waveguides and other optical functions in bulk dielectrics by locally ...
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Article
Open AccessSuper-efficient drilling of metals with ultrafast non diffractive laser beams
A highly efficient drilling process is found in non-transparent metallic materials enabled by the use of non-diffractive ultrafast Bessel beams. Applied for deep drilling through a 200 μm-thick steel plate, th...
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Article
Open AccessMultiscale electronic and thermomechanical dynamics in ultrafast nanoscale laser structuring of bulk fused silica
We describe the evolution of ultrafast-laser-excited bulk fused silica over the entire relaxation range in one-dimensional geometries fixed by non-diffractive beams. Irradiation drives local embedded modificat...
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Article
Volume photoinscription of glasses: three-dimensional micro- and nanostructuring with ultrashort laser pulses
Ultrafast laser photoinscription of optical materials has seen a strong development in the recent years for a range of applications in integrated photonics. Fueled by its capability to confine energy in micro-...
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Article
Open AccessHigh fidelity visualization of multiscale dynamics of laser-induced bubbles in liquids containing gold nanoparticles
Cavitation in pure liquids and in liquids containing nanoparticles enables applications in mechanics, bio-medicine, and energy. Its evolution carries a significant interest. We describe the multiscale dynamic ...
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Article
Open AccessFront-surface fabrication of moderate aspect ratio micro-channels in fused silica by single picosecond Gaussian–Bessel laser pulse
Single-shot Gaussian–Bessel laser beams of 1 ps pulse duration and of ~ 0.9 μm core size and ~ 60 μm depth of focus are used for drilling micro-channels on front side of fused silica in ambient condition. Chan...
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Article
Open AccessIn-situ high-resolution visualization of laser-induced periodic nanostructures driven by optical feedback
Optical feedback is often evoked in laser-induced periodic nanostructures. Visualizing the coupling between surfaces and light requires highly-resolved imaging methods. We propose in-situ structured-illumination-...
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Chapter
Optimizing Laser-Induced Refractive Index Changes in Optical Glasses via Spatial and Temporal Adaptive Beam Engineering
The result of ultrafast laser processing of embedded refractive index changes in optical materials depends on the material relaxation paths, as well as on the spatio-temporal characteristics of the writing bea...
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Chapter
Continuum Models of Ultrashort Pulsed Laser Ablation
The aim of this chapter is to provide a basic introduction to the principles that lay the foundation for established approaches that treat matter as a continuum model, in order to describe and comprehend the a...
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Chapter
Temporal Pulse Tailoring in Ultrafast Laser Manufacturing Technologies
Ultrafast lasers have gained momentum in material processing technologies in response to requirements for higher accuracy. Minimal energy diffusion and high nonlinearity of interaction indicate the possibility...
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Chapter and Conference Paper
Optimizing laser-induced refractive index changes in “thermal” glasses
Ultrafast laser radiation usually induces rarefaction and negative refractive index changes in glasses with high thermal expansion. Acting on the laser-induced heat source, tailored intensity envelopes can gen...
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Chapter
Fast Electronic Transport and Coulomb Explosion in Materials Irradiated with Ultrashort Laser Pulses
