micro-texturing by femtosecond laser ablation of a

From Femtosecond to Nanosecond Laser Microstructuring of Conical Aluminum Surfaces by Reactive Gas Assisted Laser Ablation

of ns laser structuring in contrast to the self-organized micro-structures formed during femtosecond laser ablation.[10,21] Besides the physical parameters, the surrounding gas atmosphere during laser irradiation significantly affects the structuring process

LPM2021 Presentation List (151 presentations as of May 6 )

Surface Micro/Nano Structuring 131 Femtosecond laser ablation of dielectrics: Wavelength scaling from ultraviolet to mid-infrared DR. MARIO GARCIA-LECHUGA Departamento de Fsica Aplicada, Universidad Aut noma de Madrid, Madrid Spain Invited 67

Femtosecond laser direct fabrication of metallic microcantilevers for a micro

Laser ablation was conducted directly in air. The processes were monitored in real time by a CCD camera Figure 1. Schematic setup of femtosecond laser micromachining. Figure 2. Schematic of the Ni microcantilever, with structure and dimensions denoted.

Mobility of Nanoparticles generated by Femtosecond Laser Ablation

JLMN-Journal of Laser Micro/Nanoengineering Vol. 4, No. 2, 2009 Mobility of Nanoparticles Generated by Femtosecond Laser Ablation in Liquids and Its Application to Surface Patterning Ana MENNDEZ-MANJN1, Jurij JAKOBI1, Kerstin SCHWABE2, Joachim K. KRAUSS2,

3D Multiscale Micro

1 Spontaneous wrinkling of films with a thickness gradient offers a new opportunity for constructing various 3D hierarchical surface morphologies. Unfortunately, accurately and facilely controlling the gradient film thickness to yield multiscale and 3D hierarchical micro-/nanostructures is still difficult. Here, a rapid, facile, and highly controllable fabricating strategy for realizing 3D

Microrelleus' Femtosecond Laser: Hi

It involves ultra-short laser pulses—a femtosecond is 10 −15 second, that is one quadrillionth of a second, or 0.000,000,000,000,001 second. The characteristics of this cold laser ablation unlock new possibilities in prototyping: microstructuring, texturing and engraving on almost any material.

Measurements for femtosecond laser micro

They specialize in laser texturing services (functional and design), laser micro milling and industrial engraving for molds, tools and pieces. In 2016 Microrelleus SL became world pioneers in using a femtosecond laser machine in 5 axis to service their customers.

LPM2021 Presentation List (151 presentations as of May 6 )

Surface Micro/Nano Structuring 131 Femtosecond laser ablation of dielectrics: Wavelength scaling from ultraviolet to mid-infrared DR. MARIO GARCIA-LECHUGA Departamento de Fsica Aplicada, Universidad Aut noma de Madrid, Madrid Spain Invited 67

Single

Single-shot IR femtosecond-laser ablation of gold surfaces in ambient air and liquid isopropyl alcohol was studied by scanning electron microscopy characterization of crater topographies and time-resolved optical emission spectroscopy of ablative plumes in regimes, typical for non-filamentary and non-fragmentation laser production of nanoparticle sols. Despite one order of magnitude shorter

Mobility of Nanoparticles generated by Femtosecond Laser Ablation

JLMN-Journal of Laser Micro/Nanoengineering Vol. 4, No. 2, 2009 Mobility of Nanoparticles Generated by Femtosecond Laser Ablation in Liquids and Its Application to Surface Patterning Ana MENNDEZ-MANJN1, Jurij JAKOBI1, Kerstin SCHWABE2, Joachim K. KRAUSS2,

Femtosecond laser shockwave peening ablation in liquids

Femtosecond laser shockwave peening ablation in liquids for hierarchical micro/nanostructuring of brittle silicon and its biological application doi: 10.1088/2631-7990/abb5f3 Dongshi Zhang 1, Liang-Chun Wu 2,3, Masashi Ueki 2, Yoshihiro Ito 2,4, Koji Sugioka 1 1

Material Processing at GHz Burst Mode by Femtosecond Laser Ablation

JLMN-Journal of Laser Micro/Nanoengineering Vol. 1, No. 6 1, 2021 Material Processing at GHz Burst Mode by Femtosecond Laser Ablation Kotaro Obata, Francesc Caballero-Lucas, and Koji Sugioka RIKEN Center for Advanced Photonics, RIKEN, 21 Hirosawa

MICRO/NANO PATTERNING OF SILICON AND NiP/Al

This type of texturing was very effective at reducing surfacereflectivity and can be implemented in photovoltaic devices. It was also found thatthe ablation efficiency can be improved if laser processing is performed in an argonenvironment where oxidation can be

Modulation of dry tribological property of stainless

Femtosecond laser surface texturing had a marked potential for modulating friction and wear properties if the micro-grooves were distributed in an appropriate manner. Introduction In the past decades, there has been a growing interest in the designing of surface texture in microscale to modulate the tribological properties of the interface.

Mobility of Nanoparticles generated by Femtosecond Laser Ablation

JLMN-Journal of Laser Micro/Nanoengineering Vol. 4, No. 2, 2009 Mobility of Nanoparticles Generated by Femtosecond Laser Ablation in Liquids and Its Application to Surface Patterning Ana MENNDEZ-MANJN1, Jurij JAKOBI1, Kerstin SCHWABE2, Joachim K. KRAUSS2,

Femtosecond laser ablation of Zn in air and ethanol:

2021/3/3This paper reports the effect of Ti:Sapphire laser (800 nm, 30 fs) fluence on the surface morphology, ablated area, ablation rate and hardness of a femtosecond laser irradiated Zn in air and ethanol. Targets were exposed to 1000 succeeding pulses at various fluences ranging from 1.3 to 5 J cm−2. To characterize the growth of structures on the surface of irradiated Zn, Field Emission

Femtosecond laser shockwave peening ablation in liquids

Femtosecond laser shockwave peening ablation in liquids for hierarchical micro/nanostructuring of brittle silicon and its biological application doi: 10.1088/2631-7990/abb5f3 Dongshi Zhang 1, Liang-Chun Wu 2,3, Masashi Ueki 2, Yoshihiro Ito 2,4, Koji Sugioka 1 1

LPM2021 Presentation List (151 presentations as of May 6 )

Surface Micro/Nano Structuring 131 Femtosecond laser ablation of dielectrics: Wavelength scaling from ultraviolet to mid-infrared DR. MARIO GARCIA-LECHUGA Departamento de Fsica Aplicada, Universidad Aut noma de Madrid, Madrid Spain Invited 67

From Femtosecond to Nanosecond Laser Microstructuring of Conical Aluminum Surfaces by Reactive Gas Assisted Laser Ablation

of ns laser structuring in contrast to the self-organized micro-structures formed during femtosecond laser ablation.[10,21] Besides the physical parameters, the surrounding gas atmosphere during laser irradiation significantly affects the structuring process

Surface

2010/3/23Femtosecond laser ablation at a high irradiance of tens of TW cm −2 creates F centres via generation of oxygen vacancies as discussed earlier. Since self-trapping of electrons and holes is more efficient in wide-bandgap materials, there is a considerable probability that the defects are charged.

Measurements for femtosecond laser micro

They specialize in laser texturing services (functional and design), laser micro milling and industrial engraving for molds, tools and pieces. In 2016 Microrelleus SL became world pioneers in using a femtosecond laser machine in 5 axis to service their customers.

Effects of micro

2019/6/15Micrometric texturing can be obtained by means of several methods; lithography, ion etching, micro-casting or material ablation using a femtosecond laser are the most emblematic ones []. The latter is promising regarding industrial applications as it is able to produce a broad range of patterns at different scales, without a heat affected zone and mainly in a one-single step process [ [8], [9

Thermal modeling of laser surface micro

2021/5/1Sugihara et al. [1] used a femtosecond laser (190 fs) with 515 nm wavelength and 400 kHz repetition rate for micro-texturing on cemented carbide inserts. An array of 30–70 m diameter micro-dimples with 5 m depth was arranged in a linear and zigzag pattern on 10 different types of tools.

Micro

Micro-ablation of crystalline silicon was performed by irradiating a silicon substrate with femtosecond laser pulses of wavelengths 786 nm or 393 nm focused using a conical axicon assisted with a convex lens. Focusing the laser beam close to the tip of the axicon by means of the lens significantly improved the efficiency of concentration of laser pulse energy at the central spot of the

Femtosecond pulse laser ablation and surface

Laser processing of metallic surfaces using a fs pulse laser has bene shown to produce novel effects. We demonstrate nanoscaled surface texturing effects of aluminum alloy 2024 using femtosecond pulse laser irradiation. The laser source is a 248-nm excimer

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