Laser beam machining

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Industrial and production e...
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Découpe laser

Publications associées (26)

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Morphology and composition of oxidized InAs nanowires studied by combined Raman spectroscopy and transmission electron microscopy

Anna Fontcuberta i Morral, Esther Alarcon Llado, Francesca Amaduzzi

importance for semiconductor nanowires because of the high surface-to-volume ratio and only little is known about the consequences of oxidation for these systems. Here, we study the properties of indium arsenide nanowires which were locally oxidized using ...

Institute of Physics2016

Single potassium niobate nano/microsized particles as local mechano-optical Brownian probes

László Forró, Arnaud Magrez, Andrzej Sienkiewicz, Flavio Maurizio Mor, Sylvia Jeney

Perovskite alkaline niobates, due to their strong nonlinear optical properties, including birefringence and the capability to produce second-harmonic generation (SHG) signals, attract a lot of attention as potential candidates for applications as local nan ...

Royal Soc Chemistry2016

Study and Modelling of the Melt Pool Dynamics during Selective Laser Sintering and Melting

Tatiana Polivnikova

Selective laser sintering (SLS) and Selective Laser Melting (SLM) are parent layer manufacturing processes that allow generating complex 3D parts by consolidating layers of powder material on top of each other. Consolidation is obtained by processing the s ...

EPFL2015

On the design of highly luminescent lanthanide complexes

Jean-Claude Bünzli

Presently, phosphors and luminescent materials for lighting, telecommunications, displays, security inks and marking, as well as for probes in biosciences represent one third of the total value of the lanthanides used worldwide. If optical glasses and lase ...

Elsevier2015

Study of physical phenomena of selective laser melting towards increased productivity

Christoph Van Gestel

This thesis presents an experimentally focused study of three of the key physical phenomena of the Selective Laser Melting (SLM) process. The SLM process increasingly gains momentum in industrial applications. As awareness of the process and its capabiliti ...

EPFL2015

Application of Adaptive Optics to Focusing and Imaging

Daniel Iwaniuk

Adaptive optics is used to abate aberrations with a wavefront correction. It is widely used in astronomy and is starting to expand into applications of laser focusing and imaging with high numerical apertures, e.g. microscopy. The physical background of fo ...

EPFL2012

An innovative method to build support structures with a pulsed laser in the selective laser melting process

Rémy Glardon, Eric Boillat, Jamasp Jhabvala, Cédric André

In selective laser melting machines, continuous laser are usually used to melt the powder. The support structures, which are inevitable when dealing with elaborated pieces, necessitate a complex design by CAD in order to be easily removed. This paper propo ...

Springer-Verlag2012

Development of Tunable Optical MEMS for Advanced Laser Beam Shaping, Homogenizing and Speckle Reduction

Jonathan Masson

In this thesis, the development, design, fabrication and characterization of three innovative laser beam shaping, homogenizing and speckle reduction devices are reported. Typical beam shaping devices are static and not easily adaptable to a large variety o ...

EPFL2012

Alkaline niobate nanowires as opto-mechanical probes

Aleksandra Radenovic, Fabrizia Dutto

Perovskite alkaline niobate (XNbO3) nanowires are attracting lots of attention having a variety of interesting properties such as significant nonlinear optical response, pronounced birefringence, considerable piezoelectric, pyroelectric, photorefractive, a ...

Spie-Int Soc Optical Engineering2012

Local modification of GaAs nanowires induced by laser heating

Anna Fontcuberta i Morral

GaAs nanowires were heated locally under ambient air conditions by a focused laser beam which led to oxidation and formation of crystalline arsenic on the nanowire surface. Atomic force microscopy, photoluminescence and Raman spectroscopy experiments were ...

Institute of Physics2011

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Morphology and composition of oxidized InAs nanowires studied by combined Raman spectroscopy and transmission electron microscopy

Anna Fontcuberta i Morral, Esther Alarcon Llado, Francesca Amaduzzi

Institute of Physics2016