Results | FZU

Laser-induced gas-phase transfer and direct stamping of nanomaterials: comparison of nanosecond and femtosecond pulses

Top left: Schematics of BB-LIFT in which two laser irradiation regimes and two donor-to-receiver distances were used. Top right: An optical microscope image of the transferred hBN flakes; the color change is due to a variation in the number of layers across the flake. Bottom: BB-LIFT transfer in the laser scanning regimes with overlapping zones of irradiation for nanosecond and femtosecond laser pulses. (A) and (C) are the receiver substrates and (B) and (D) are the donors.

Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams

Schematic of nanoparticle synthesis by donut-shaped laser pulses. Typical size distributions of the produced nanoparticles (right) and ring-shaped cavitation bubbles (bottom) are shown.

Attosecond Control of Solid-State High Harmonic Generation Using ω−3ω Fields

The instantaneous power of high harmonic emission calculated using time-dependent density functional theory (blue shaded area) for two values of the relative phase difference of 𝜑 = 1.5𝜋 and 𝜑 = 0.5. The time evolution of the electric field of the combined waveform (red solid curve) is compared with the electric field of the fundamental pulse (black dashed curve).

Coherence effects in LIPSS formation on silicon wafers upon picosecond laser pulse irradiations

Top: Schematic representation of the three-wave interference. Bottom: Optical microscope images of two neighboring spots produced sequentially on silicon by femtosecond laser pulses of different polarization.

Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon

Synthesis of High Entropy Alloy Nanoparticles by Pulsed Laser Ablation in Liquids: Influence of Target Preparation on Stoichiometry and Productivity

Schematic of the PLAL synthesis of HEA nanoparticles with a mass spectrum of the particles in the ablation plasma and particle elemental maps.

Double-pulse-laser volumetric modification of fused silica: the effect of pulse delay on light propagation and energy deposition

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Environmentally friendly improvement of plasmonic nanostructure functionality towards magnetic resonance applications

Left: Dependence of the chemical composition of AuSiNPs on the concentration of Si NPs in water (a). Size distributions of bare Au and hybris AuSi NPs (b). Right: Optoelectronic properties of Au-based NPs: absorbance (a) and Electron Paramagnetic Resonance (b) spectra.

Non-thermal regimes of laser annealing of semiconductor nanostructures: crystallization without melting

(a) Schematics of a stress/shock wave initiation upon ultrashort laser annealing of the titania nanotubes. (b) A sketch for phase transformation from the amorphous state to anatase and rutile. (c) SEM image of the TiO2 nanotubes annealed with the picosecond laser pulses.

From localized laser energy absorption to absorption delocalization at volumetric glass modification with Gaussian and doughnut-shaped pulses

The calculated dynamics of the double shock wave structure created in fused silica as the result of the action of the DS pulse with energy of 2 μJ. The laser beam propagates from the bottom with the geometrical focus at z = 120 μm. The maximum predicted pressure created inside the sample is ~380 GPa.

Role of Van Hove singularities and effective mass anisotropy in polarization-resolved high harmonic spectroscopy of silicon

Left: Scheme of harmonic spectroscopy. Right: Effect of sample orientation on the high harmonic emission by light-irradiated silicon. (a) Experimental data. (b) Quantum simulation results obtained using the ab-initio TDDFT method.

Formation of tubular structures and microneedles on silicon surface by doughnut-shaped ultrashort laser pulses

Left: Experimental scheme. Right: Schematics of laser ablation with the formation of tubular and needle-like structures.

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