Surface modification of brass via ultrashort pulsed direct laser interference patterning and its effect on bacteria-substrate interaction

AS Ahmed, DW Müller, S Bruyere… - … Applied Materials & …, 2023 - ACS Publications
In recent decades, antibiotic resistance has become a crucial challenge for human health.
One potential solution to this problem is the use of antibacterial surfaces, ie, copper and …

Ablation of copper metal films by femtosecond laser multipulse irradiation

A Abdelmalek, Z Bedrane, EH Amara, B Sotillo… - Applied Sciences, 2018 - mdpi.com
Ablation of copper using multipulse femtosecond laser irradiation with an 800 nm
wavelength and 120-fs pulse duration is investigated theoretically. A two-temperature …

Hydrodynamic expansion and plume splitting of the ultrafast laser-induced plasma during ablation of multi-element metallic materials under atmospheric condition

S Zhang, YC Shin - Journal of Applied Physics, 2024 - pubs.aip.org
In this study, the hydrodynamic expansion and splitting effect of ultrafast laser-induced
plasma plume for multi-element alloys were studied. A fully coupled hydrodynamic model for …

A model of ultra-short pulsed laser ablation of metal with considering plasma shielding and non-Fourier effect

S Tan, J Wu, Y Zhang, M Wang, Y Ou - Energies, 2018 - mdpi.com
In this paper, a non-Fourier heat conduction model of ultra-short pulsed laser ablation of
metal is established that takes into account the effect of the heat source, laser heating of the …

Experimental and theoretical determination of the effective penetration depth of ultrafast laser radiation in stainless steel

D Metzner, M Olbrich, P Lickschat, A Horn… - Lasers in Manufacturing …, 2020 - Springer
This study intends to present a simple two-temperature model (TTM) for the fast calculation
of the ablation depth as well as the corresponding effective penetration depth for stainless …

Analysis of the heat-affected zone and ablation efficiency in terms of burst mode parameters during high power picosecond laser micromachining of metals

S Zhang, YC Shin - Journal of Manufacturing …, 2023 - asmedigitalcollection.asme.org
This paper presents a systematic study on using the burst mode ablation to limit the heat-
affected zone (HAZ) while maintaining a high ablation efficiency using a high-power …

Thermomechanical response of copper films irradiated by femtosecond-pulsed lasers with dynamic optical properties

Y Ren, K Qin, Y Chen, Q Lin, D Xu, Z Xin, J Ni, L Ge - Applied Optics, 2019 - opg.optica.org
By taking into account the dynamic thermophysical and optical properties, the ultrafast
thermoelastic response of thin copper film irradiated by femtosecond lasers has been …

Lasermikrostrukturierung von hochlegiertem Stahl–Grundlagenuntersuchungen zum Einsatz hochfrequenter Pulsfolgen ultrakurzer Laserpulse

D Metzner - 2023 - monarch.qucosa.de
Abstract (DE) Die vorliegende Arbeit befasst sich mit dem Einsatz hochfrequenter Pulsfolgen
ultrakurzer Laserpulse zur Lasermikrobearbeitung von hochlegierten Stählen. Dabei wird …

Fundamentals of Optical Instrumentation for Spectroscopic and Imaging Applications

SM Aberkane, EH Amara… - Optical Spectroscopy And …, 2023 - books.google.com
This chapter introduces basic optical instrumentation typically used to perform optical
spectroscopic and imaging measurements in biomedical samples. It is not intended to be an …

Research and modeling of laser ablation by ultra-short laser pulses for metal targets

RV Davydov, VI Antonov - Journal of Physics: Conference Series, 2019 - iopscience.iop.org
In this article a new mathematical model for a laser metal ablation by ultra-short duration
laser pulses is proposed. The computational process is based on a two-temperature …