Search query: Laser Processing and Chemistry

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abstract: Part I Overview and Fundamentals: Introduction. Thermal, Photophysical, and Photochemical Processes. Reaction Kinetics and Transport of Species. Nucleation and Cluster Formation. Lasers, Experimental Aspects, Spatial Confinement. Part II Temperature Distributions and Surface Melting: General Solutions of the Heat Equations. Semi infinite Substrates. Infinite Slabs. Non uniform Media. Surface Melting. Part III Material Removal: Vaporization, Plasma Formation. Nanosecond Laser Ablation. Ultrashort Pulse Laser Ablation. Etching of Metals and Insulators. Etching of Semiconductors. Part IV Material Deposition: Laser CVD of Microstructures. Growth of Fibers. Direct Writing. Thin Film Formation by Laser CVD. Adsorbed Layers, Laser MBE. Liquid Phase Deposition, Electroplating. Thin Film Formation by Pulsed Laser Deposition and Laser Induced Evaporation. Part V Material Transformations, Synthesis and Structure Formation: Material Transformations, Laser Cleaning. Doping. Cladding, Alloying, and Synthesis. Oxidation, Nitridation, and Reduction. Transformation and Functionalization of Organic Materials. Instabilities and Structure Formation. Part VI Diagnostic Techniques, Plasmas: Diagnostic Techniques. Analysis of Species and Plasmas, Part VII Lasers in Medicine, Biotechnology and Arts: Lasers in Medicine and Biotechnology. Restoration and Conservation of Artworks.
author_names: Dieter Bauerle
title: Laser Processing and Chemistry
year: 1996

abstract: Laser induced material processing is reviewed with special emphasis on recent achievements mainly obtained by the Linz group. Among those are investigations using optical fiber tips for nanoscale photophysical etching, the pulsed laser deposition of thin films of high temperature superconductors (HTSs) and polytetrafluoroethylene (PTFE) and the laser cleaning of surfaces.
author_names: Dieter Bauerle
title: Laser processing and chemistry: recent developments
year: 2002

abstract: Abstract.Laser induced material processing is reviewed with special emphasis on recent achievements mainly obtained by the Linz group. Among those are investigations using optical fiber tips for nanoscale photophysical etching, laser induced surface patterning using self assembled microspheres, the pulsed laser deposition of thin films of high temperature superconductors and the modification and cleaning of surfaces.
author_names: Dieter Bauerle

Richard Denk

Johannes D Pedarnig

Klaus Piglmayer

Johannes Heitz

G Schrems
title: Perspectives of laser processing and chemistry
year: 2003

abstract: This overview reports recent experimental and theoretical investigations on laser processing. Among these are the submicron and nano patterning of surfaces by means of both nearfield optical techniques and microlens arrays formed by self organization processes; the pulsed laser deposition (PLD) of thin films including organic, inorganic and composite materials, and the modification of material surfaces. The latter field, and in particular the surface modification of polytetrafluoroethylene (PTFE, Teflon) has various different applications in biotechnology and medicine. Many of these results have been achieved during the long standing collaboration between the groups in Linz and Bucharest.
author_names: Dieter Bauerle

Johannes D Pedarnig

Ionela Vrejoiu

Martin Dr Dipl -Ing Peruzzi

Dan G Matei

Daniel Brodoceanu

Maria Dinescu
title: LASER PROCESSING AND CHEMISTRY: APPLICATIONS IN NANOPATTERNING, MATERIAL SYNTHESIS AND BIOTECHNOLOGY
year: 2005

abstract: Das Buch ist in fiinf Kapitel eingeteilt, in denen die allgemeinen Laserprinzipien, die wichtigsten heute verfiigbaren Lasersysteme bis hin zum Titan Saphir Laser, die grundlegenden Laserverfahren und Techniken, die Laserspektroskopie und die laserinduzierte Chemie behandelt werden. Zu den einzelnen Kapiteln gibt es einige ausgewahlte Aufgaben mit Ergebnissen im Anhang. Der Anhang enthalt auBerdem die wichtigsten Laserwellenlangen, Akronyme, Abkurzungen und eine ausgewahlte Bibliographie. Die Auswahl des Stoffes ist ausgewogen und in der neuen Auflage der aktuellen Entwicklung angepaBt. Ein Vorteil des Buches ist die Beschrankung auf 232 Seiten, da ausfiihrlichere Darstellungen verschiedener Teilaspekte verfiigbar sind. Das Buch stellt eine Einfiihrung in die obigen Themengebiete dar. Die Darstellung des Stoffes ist sehr klar, einfach und gut verstandlich. Sorgfaltig ausgewahlte schematische Darstellungen und Bilder aus Publikationen mit neuesten Forschungsergebnissen illustrie
author_names: Klaus Zimmer
title: Laser Processing and Chemistry
year: 1999

abstract: Laser induced material processing is reviewed with special emphasis on recent achievements mainly obtained by the Linz group. Among those are investigations using optical fiber tips for nanoscale photophysical etching, laser induced ablation using self assembled microspheres, the pulse laser deposition of thin films of high temperature superconductors (HTS) and polytetrafluoroethylene (PTFE) and the modification and cleaning of surfaces.
author_names: Dieter Prof Dr Baeuerle
title: Perspectives of laser processing and chemistry
venue: SPIE High Power Laser Ablation
year: 2002

author_names: W Biegel
title: D. Bliuerle Laser Processing and Chemistry. Second Edition, Springer Verlag, Berlin Heidelberg New York, 1996, ISBN: 3 540 60541 X, DM 128,00.
year: 1997

abstract: Laser induced material processing is reviewed with special emphasis on recent achievements mainly obtained by the Linz group. Among those are investigations using optical fiber tips for nanoscale photophysical etching, laser induced surface patterning using self assembled microspheres, the pulsed laser deposition of thin films of high temperature superconductors and the modification and cleaning of surfaces.
author_names: Angewandte Physik
title: Perspectives of laser processing and chemistry
year: 2003

abstract: Abstract A lot of research efforts have been invested in the fabrication of superhydrophobic surfaces in recent years due to many protentional applications in science and industry including anti icing, self cleaning and anti corrosive surfaces. Laser as a non polluting, precise and flexible tool can be applied to replicate surface microstructures of extremely water repellent lotus leave surface. In this study, a common nanosecond laser source is used to fabricate a super/ultrahydrophobic surfaces with different microstructure designs, contact angles above 170deg and sliding angles below 5deg. The freshly processed surface is hydrophilic and becomes hydrophobic and superhydrophobic in a certain time period, which could be dramatically reduced by storing samples in high vacuum. The transformation in wetting properties are analysed with respect to surface geometry and surface chemistry.
author_names: Petr Hauschwitz

R Jagdheesh

D Rostohar

Jan Brajer

J Kopecek

Petr Jiricek

Jana Houdkova

T Mocek
title: Hydrophilic to ultrahydrophobic transition of Al 7075 by affordable ns fiber laser and vacuum processing
year: 2020

abstract: Abstract Wettability plays a major role in a variety of surface related phenomena, as corrosion, heat transfer or tissue adhesion on implants. Consequently, great research effort is being devoted to control the wetting degree of functional surfaces. Pulsed laser texturing at micro/nanometric level has been widely used for that purpose as a precision/time efficient technique. This work studies the role of the processing atmosphere in controlling the wettability of commercial AISI 304 by laser texturing. A pulsed laser source (l 532 nm) working at the nanosecond regime was employed and five different atmospheres were tested (i.e. O2, Air, CO2, N2, Ar) The results show clear differences in the wetting behaviour depending solely on the processing environment, ranging from hydrophilicity (31deg) to hydrophobicity (125deg) Those differences in wettability were found to be a consequence of changes in surface chemistry between samples processed under the various gases. The laser processing parameters showed a capability to tune the final wetting behaviour by controlling the topography and modulating the chemical composition given by the processing environment. It is demonstrated how the effects of the atmosphere can be exploited to tailor the wettability of the untreated surfaces (th 88deg) up to the desired value, ranging from superhydrophilicity (th 0deg) to superhydrophobicity (th 152deg)
author_names: Pablo Pou

Jesus del Val

Antonio Riveiro

Rafael Comesana

Felipe Arias-Gonzalez

F Lusquinos

M Bountinguiza

Felix Quintero

Juan Pou
title: Laser texturing of stainless steel under different processing atmospheres: From superhydrophilic to superhydrophobic surfaces
venue: Applied Surface Science
year: 2019