Laura Gemini
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View article: Long GHz-Burst Laser Surface Polishing of AlSl 316L Stainless Steel Parts Manufactured by Short GHz-Burst Laser Ablation
Long GHz-Burst Laser Surface Polishing of AlSl 316L Stainless Steel Parts Manufactured by Short GHz-Burst Laser Ablation Open
GHz-burst laser polishing is as a promising technique for improving the surface quality of metallic materials, offering key advantages over conventional methods. In this study, two distinct approaches are investigated: a single-step polish…
View article: Analyzing the Potential of Laser Femtosecond Technology for the Mass Production of Cyclic Olefin Copolymer Microfluidic Devices for Biomedical Applications
Analyzing the Potential of Laser Femtosecond Technology for the Mass Production of Cyclic Olefin Copolymer Microfluidic Devices for Biomedical Applications Open
Precision micromilling is currently widely used for the fabrication of injection mold inserts for the mass production of microfluidic devices. However, for complex devices with micrometer-scale and high density of structures, micromilling …
View article: Bessel Beam Femtosecond Laser Interaction with Fused Silica Before and After Chemical Etching: Comparison of Single Pulse, MHz-Burst, and GHz-Burst
Bessel Beam Femtosecond Laser Interaction with Fused Silica Before and After Chemical Etching: Comparison of Single Pulse, MHz-Burst, and GHz-Burst Open
We investigate the elongated modifications resulting from a Bessel beam-shaped femtosecond laser in fused silica under three different operation modes, i.e., the single-pulse, MHz-burst, and GHz-burst regimes. The single-pulse and MHz-burs…
View article: Laser-induced stress by multi-beam femtosecond pulses in fused silica
Laser-induced stress by multi-beam femtosecond pulses in fused silica Open
Ultrafast laser technology presents the unique capacity to process glass materials with an outstanding processing quality; however, combining high quality and high throughput is still a crucial issue because glass is brittle and highly hea…
View article: Real-Time Monitoring of Thermal Phenomena during Femtosecond Ablation of Bone Tissue for Process Control
Real-Time Monitoring of Thermal Phenomena during Femtosecond Ablation of Bone Tissue for Process Control Open
Femtosecond (fs) laser technology is currently being considered in innovative fields such as osteotomy and treatment of hard tissue thanks to the achievable high resolution and ability to prevent tissue damage. In a previous study, suitabl…
View article: Benefits of Femtosecond Laser 40 MHz Burst Mode for Li-Ion Battery Electrode Structuring
Benefits of Femtosecond Laser 40 MHz Burst Mode for Li-Ion Battery Electrode Structuring Open
In Li-ion batteries, ion diffusion kinetics represent a limitation to combine high capacity and a fast charging rate. To bypass this, textured electrodes have been demonstrated to increase the active surface, decrease the material tortuosi…
View article: Through the Forming Process of Femtosecond-Laser Nanotextured Sheets for Production of Complex 3D Parts
Through the Forming Process of Femtosecond-Laser Nanotextured Sheets for Production of Complex 3D Parts Open
The use of ultra-short pulse lasers in the kW range, combined with an appropriate beam engineering approach, enables the achievement of high-throughput production of laser-functionalised surfaces. However, the manufacturing of complex part…
View article: Forming of metal sheets textured by LIPSS
Forming of metal sheets textured by LIPSS Open
Use of kW class Ultra-Short Pulse lasers jointly with a suitable beam engineering strategy makes possible to achieve highthroughput production of laser functionalised surfaces. Nonetheless, the production of complex parts is still limited …
View article: Bone Laser Patterning to Decipher Cell Organization
Bone Laser Patterning to Decipher Cell Organization Open
The laser patterning of implant materials for bone tissue engineering purposes has proven to be a promising technique for controlling cell properties such as adhesion or differentiation, resulting in enhanced osteointegration. However, the…
View article: Bone Laser Patterning to Decipher Cells Organization
Bone Laser Patterning to Decipher Cells Organization Open
Laser patterning of implant materials for bone tissue engineering purposes has shown to be a promising technique to control cell properties such as adhesion or differentiation, resulting in an enhanced osteointegration. However, the perspe…
View article: The cleanability of laser etched surfaces with repeated fouling using Staphylococcus aureus and milk
The cleanability of laser etched surfaces with repeated fouling using Staphylococcus aureus and milk Open
Biofouling is a serious problem in the food industry, and one way to control biofouling is using topographically patterned surfaces. This in vitro study used a laser surface texturing process to produce six differently patterned topographi…
View article: Fused silica ablation by double ultrashort laser pulses with dual wavelength and variable delays
Fused silica ablation by double ultrashort laser pulses with dual wavelength and variable delays Open
Today, glass and other similar dielectric materials are widely used in modern manufacturing. However, glass is a brittle and a heat sensitive material. Laser technology is used to process glass but quality and throughput are still a key is…
View article: Vascularization of Cell-Laden Microfibres by Femtosecond Laser Processing
Vascularization of Cell-Laden Microfibres by Femtosecond Laser Processing Open
To face the increasing demand for organ transplantation, currently the development of tissue engineering appears as the best opportunity to effectively regenerate functional tissues and organs. However, these approaches still face the lack…
View article: LIPSS and DLIP: From hierarchical to mutually interacting, homogeneous, structuring
LIPSS and DLIP: From hierarchical to mutually interacting, homogeneous, structuring Open
Direct Laser Interference Patterning (DLIP) and Laser Induced Periodic Surface Structures (LIPSS) are two distinct, key technologies for texturing of surfaces with structures in the range comprised between some hundreds of nm and few µm. B…
View article: Ablation of Bone Tissue by Femtosecond Laser: A Path to High-Resolution Bone Surgery
Ablation of Bone Tissue by Femtosecond Laser: A Path to High-Resolution Bone Surgery Open
Femtosecond lasers allow for high-precision, high-quality ablation of biological tissues thanks to their capability of minimizing the thermal loads into the irradiated material. Nevertheless, reported ablation rates remain still too limite…
View article: Fused silica ablation by double femtosecond laser pulses: influence of polarization state
Fused silica ablation by double femtosecond laser pulses: influence of polarization state Open
Glass processing is a subject of high interest for many industrial fields such as optics manufacturing, smart electronics or medical devices. With respect to nanosecond technology, the use of femtosecond lasers allows to achieve high proce…
View article: Towards Laser-Textured Antibacterial Surfaces
Towards Laser-Textured Antibacterial Surfaces Open
Escherichia coli and Staphylococcus aureus bacterial retention on mirror-polished and ultrashort pulse laser-textured surfaces is quantified with a new approach based on ISO standards for measurement of antibacterial performance. It is sho…
View article: Design and characterization of textured surfaces for applications in the food industry
Design and characterization of textured surfaces for applications in the food industry Open
The aim of this work is to design, manufacture and characterize surface morphologies on AISI 316L stainless steel produced by a custom designed laser-Texturing strategy. Surface textures were characterized at a micrometric dimension in ter…