Searched for: author%3A%22Huis+in+%27t+Veld%2C+A.J.%22
(1 - 20 of 37)

Pages

List view
Grid view
document
Scorticati, D. (author), Illiberi, A. (author), Bor, T.C. (author), Eijt, S.W.H. (author), Schut, H. (author), Römer, G.R.B.E. (author), Klein Gunnewiek, M. (author), Lenferink, A.T.M. (author), Kniknie, B.J. (author), Mary Joy, R. (author), Dorenkamper, M.S. (author), de Lange, D.F. (author), Otto, C. (author), Borsa, D. (author), Soppe, W.J. (author), Huis in 't Veld, A.J. (author)
Abstract Industrial-grade Al:ZnO thin films, were annealed by UV picosecond laser irradiation in argon atmosphere. A remarkable increase of both the carrier density and electron mobility was measured, while the optical properties in the 400-1000 nm range did not change significantly. We studied the microstructure of the films, in order to...
article 2015
document
Verburg, P.C. (author), Römer, G.R.B.E. (author), Huis In 'T Veld, A.J. (author)
We investigated the laser-material interaction during the production of laser-induced subsurface modifications in silicon with a numerical model. Such modifications are of interest for subsurface wafer dicing. To predict the shape of these modifications, a two-temperature model and an optical model were combined. We compared the model results...
article 2014
document
Vincenc Oboňa, J. (author), Ocelík, V. (author), Rao, J.C. (author), Skolski, J.Z.P. (author), Römer, G.R.B.E. (author), Huis In 'T Veld, A.J. (author), Hosson, J.T.M.D. (author)
High purity, mirror-polished polycrystalline Cu surface was treated with single picosecond laser pulses at fluence levels close to the single-pulse modification threshold. The induced surface topography and sub-surface changes were examined with scanning and transmission electron microscopy, respectively. The analysis showed an increased...
article 2014
document
Sedao, X. (author), Derrien, T.J.Y. (author), Romer, G.R.B.E. (author), Pathiraj, B. (author), Huis in 't veld, A.J. (author)
Laser surface micro/nanopatterning by particle lens arrays is a well-known technique. Enhanced optical fields can be achieved on a substrate when a laser beam passes through a self-assembled monolayer of silica microspheres placed on the substrate. This enhanced optical field is responsible for ablative material removal from the substrate...
article 2013
document
Eichstädt, J. (author), Huis In 't Veld, A.J. (author)
The influence of errors on the irradiation process for laser-induced periodic surface structures (LIPSS) was studied theoretically with energy density simulations. Therefore an irradiation model has been extended by a selection of technical variations. The influence of errors has been found in a deviation from optimal conditions, by a shift or...
conference paper 2013
document
Eichstädt, J. (author), Römer, G.R.B.E. (author), Huis in 't Veld, A.J. (author)
The spatial emergence of laser-induced periodic surface structures (LIPSS) on single-crystalline silicon, upon irradiation with linearly polarized picosecond laser pulses (wavelength λ = 1030 nm, pulse duration τ = 6.7 ps, pulse repetition frequency fp = 1 kHz) was studied theoretically and experimentally, under lateral displacement conditions....
article 2013
document
Ya, W. (author), Hernández-Sánchez, J.F. (author), Pathiraj, B. (author), Huis in 't Veld, A.J. (author)
The effects of powder stream when using different feeding nozzles on the attenuation of the laser power were investigated theoretically and experimentally. The powder streams were recorded with a high speed camera. The average velocity of the particles was obtained using standard Particle Image Velocimetry (PIV) technique. These average...
conference paper 2013
document
Scorticati, D. (author), Illiberi, A. (author), Römer, G.R.B.E. (author), Bor, T. (author), Ogieglo, W. (author), Klein Gunnewiek, M. (author), Lenferink, A. (author), Otto, C. (author), Skolski, J.Z.P. (author), Grob, F.T.J. (author), de Lange, D.F. (author), Huis in 't Veld, A.J. (author)
Ultra-short pulsed laser sources, with pulse durations in the ps and fs regime, are commonly exploited for cold ablation. However, operating ultra-short pulsed laser sources at fluence levels well below the ablation threshold allows for fast and selective thermal processing. The latter is especially advantageous for the processing of thin films....
conference paper 2013
document
Pohl, R. (author), Römer, G.R.B.E. (author), Hoppenbrouwers, M.B. (author), Huis in 't Veld, A.J. (author)
A new method to analyze and quantify results obtained with the Laser-Induced Forward Transfer (LIFT) process is presented. This experiment based characterization method was designed to investigate the spraying behavior of the LIFT process, that occurs in certain fluence regimes. This method was implemented in MATLAB, and takes 3D data (e.g....
article 2012
document
Römer, G.R.B.E. (author), Del Cerro, D.A. (author), Jorritsma, M.M.J. (author), Phl, R. (author), Chang, B. (author), Liimatainen, V. (author), Zhou, Q. (author), Huis in 't Veld, A.J. (author)
conference paper 2012
document
Skolski, J.Z.P. (author), Römer, G.R.B.E. (author), Obona, J.V. (author), Ocelik, V. (author), Huis in 't Veld, A.J. (author), de Hosson, J.Th.M. (author)
The finite-difference time-domain (FDTD) method is used to study the inhomogeneous absorption of linearly polarized laser radiation below a rough surface. The results are first analyzed in the frequency domain and compared to the efficacy factor theory of Sipe and coworkers. Both approaches show that the absorbed energy shows a periodic nature,...
article 2012
document
Skolski, J.Z.P. (author), Römer, G.R.B.E. (author), Obona, J.V. (author), Ocelik, V. (author), Huis in 't Veld, A.J. (author), de Hosson, J.T.M. (author)
conference paper 2012
document
Sedao, X. (author), Derrien, T.J.Y. (author), Romer, G.W.R.B.E. (author), Pathiraj, B. (author), Huis in 't Veld, A.J. (author)
A micro-sphere array optic was employed for laser surface micro-structuring. This array optic consists of a hexagonally close-packed monolayer of silica micro-spheres. It was organized through a self-assembly process and held together on a glass support, without using any adhesives. The array assembly was then reversed, placed in direct contact...
article 2012
document
Sibillano, T. (author), Ancona, A. (author), Rizzi, D. (author), Mezzapesa, F. (author), Konuk, A.R. (author), Aarts, R.G.K.M. (author), Huis in 't Veld, A.J. (author), Lugara, P.M. (author)
In-process monitoring and feedback control are fundamental actions for stable and good quality laser welding process. In particular, penetration depth is one of the most critical features to be monitored. In this research, overlap welding of stainless steel is investigated to stably reproduce a fixed penetration depth using both CO2 and Nd:YAG...
conference paper 2012
document
Scorticati, D. (author), Skolski, J.Z.P. (author), Römer, G.R.B.E. (author), Huis in 't Veld, A.J. (author), Workum, M. (author), Theelen, M.J. (author), Zeman, M. (author)
In this work, we studied the feasibility of surface texturing of thin molybdenum layers on a borosilicate glass substrate with Ultra-Short Laser Pulses (USLP). Large areas of regular diffraction gratings were produced consisting of Laserinduced periodic surface structures (LIPSS). A short pulsed laser source (230 fs-10 ps) was applied using a...
conference paper 2012
document
Oosterhuis, G. (author), Giesbers, M.P. (author), van Melick, P.A.J. (author), Hoppenbrouwers, M.B. (author), Prenen, A.M. (author), Huis in ‘t Veld, A.J. (author), Knippels, G. (author)
Direct-write technologies can form a low-cost, alternative approach to create electrical interconnects by eliminating mask and etch costs. Also, direct-write is more efficient in creating complex structures as well as for producing small series. However, existing, industrially-mature direct-write technologies typically lack the resolution...
conference paper 2012
document
Konuk, A.R. (author), Aarts, R.G.K.M. (author), Huis in 't Veld, A.J. (author), Sibillano, T. (author), Rizzi, D. (author), Ancona, A. (author)
Recent developments in laser joining show the applicability of spectral analysis of the plasma plume emission to monitor and control the quality of weld. The analysis of the complete spectra makes it possible to measure specific emission lines which reveal information about the welding process. The subsequent estimation of the electron...
conference paper 2011
document
Römer, G.R.B.E. (author), Jorritsma, M.M.J. (author), Del Cerro, D.A. (author), Chang, B. (author), Liimatainen, V. (author), Zhou, Q. (author), Huis in 't Veld, A.J. (author)
Fluid driven self-alignment is a low cost alternative to fast but relatively inaccurate robotic pickand- place assembly of micro-fabricated components. This fluidic self-alignment technique relies on a hydrophobic-hydrophilic pattern on the surface of the receiving substrate, which confines a fluid to a receptor site. When a micro-component is...
conference paper 2011
document
Huis in 't veld, A.J. (author)
Ultra short laser pulses in the femto and pico second regime are the most important driver of new laser processes. 3D - Laser micro machining in a direct write mode is already available on an industrial scale whereas in the coming years laser nano machining will be further developed. The key for process innovation is a better understanding of...
article 2011
document
Oboňa, J.V. (author), Ocelík, V. (author), de Hosson, J.T.M. (author), Skolski, J.Z.P. (author), Mitko, V.S. (author), Römer, G.R.B.E. (author), Huis in 't Veld, A.J. (author)
The main advantage of ultrashort laser pulses in manufacturing technology is their very high removal rate of material and high quality of microstructures with the smallest dimensions at 1 μm level. The accuracy is mainly due to an almost absence of thermal diffusion into bulk material. In this paper we report the investigation on polycrystalline...
conference paper 2011
Searched for: author%3A%22Huis+in+%27t+Veld%2C+A.J.%22
(1 - 20 of 37)

Pages

List view
Grid view