<?xml version="1.0" encoding="utf-8"?>
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  <doc>
    <id>43999</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>27</pageFirst>
    <pageLast>31</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>1</volume>
    <type>article</type>
    <publisherName>ACS</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fabrication of regularly arranged chalcopyrite micro solar cells via femtosecond laser-induced forward transfer for concentrator application</title>
    <abstract language="eng">A laser-based bottom-up technique for the fabrication of Cu(In,Ga)Se2 (CIGSe) micro solar cells is presented.&#13;
We use femtosecond laser-induced forward transfer (LIFT) to transport a metallic precursor composed of copper, indium, and gallium onto a molybdenum back contact layer on a glass substrate. A CIGSe absorber forms by subsequent selenization. An array of micro absorbers with defined spacing is fabricated to solar cells and characterized under concentrated light illumination. The solar cell array exhibited a conversion efficiency of 1.4‰ at 1 sun as well as a significant efficiency enhancement of 68% rel. under 20-fold concentration. This work demonstrates the possibility of directly grown micrometer-sized solar cells based on chalcogenide absorber layers, enabling effective material usage.</abstract>
    <parentTitle language="eng">ACS Applied Energy Materials</parentTitle>
    <identifier type="doi">10.1021/acsaem.7b00028</identifier>
    <identifier type="issn">2574-0962</identifier>
    <author>B. Heidmann</author>
    <author>Stefan Andree</author>
    <author>S. Levcenko</author>
    <author>T. Unold</author>
    <author>D. Abou-Ras</author>
    <author>N. Schäfer</author>
    <author>Jörn Bonse</author>
    <author>Jörg Krüger</author>
    <author>M. Schmid</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro solar cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Light concentration</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIFT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chalcopyrite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>44450</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1052707-1</pageFirst>
    <pageLast>1052707-9</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>10527</volume>
    <type>conferenceobject</type>
    <publisherName>SPIE</publisherName>
    <publisherPlace>Bellingham, WA, USA</publisherPlace>
    <creatingCorporation>Society of Photo-Optical Instrumentation Engineers (SPIE)</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Locally grown Cu(In,Ga)Se2 micro islands for concentrator solar cells</title>
    <abstract language="eng">Light concentration opens up the path to enhanced material efficiency of solar cells via increased conversion efficiency and decreased material requirement. For true material saving, a fabrication method allowing local growth of high quality absorber material is essential. We present two scalable fs-laser based approaches for bottom-up growth of Cu(In,Ga)Se2 micro islands utilizing either site-controlled assembly of In(,Ga) droplets on laser-patterned substrates during physical vapor deposition, or laser-induced forward transfer of (Cu,In,Ga) layers for local precursor arrangement. The Cu(In,Ga)Se2 absorbers formed after selenization can deliver working solar devices showing efficiency enhancement under light concentration.</abstract>
    <parentTitle language="eng">Proceedings of SPIE 10527, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII</parentTitle>
    <identifier type="issn">0277-786X</identifier>
    <identifier type="issn">1996-756X</identifier>
    <identifier type="isbn">978-1-5106-1540-3</identifier>
    <enrichment key="eventName">SPIE OPTO, 2018</enrichment>
    <enrichment key="eventPlace">San Francisco, USA</enrichment>
    <enrichment key="eventStart">29.01.2018</enrichment>
    <enrichment key="eventEnd">02.02.2018</enrichment>
    <enrichment key="date_peer_review">06.12.2018</enrichment>
    <author>M. Schmid</author>
    <author>B. Heidmann</author>
    <author>F. Ringleb</author>
    <author>K. Eylers</author>
    <author>O. Ernst</author>
    <author>Stefan Andree</author>
    <author>Jörn Bonse</author>
    <author>T. Boeck</author>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chalcopyrite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cu(In,Ga)Se2</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fs-laser patterning</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced forward transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro solar cell</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>46859</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Sekundärstrahlungsemission bei der UKP-Laser-Anwendung: Herausforderung für die Arbeitssicherheit</title>
    <abstract language="deu">Im Vortrag werden die Risiken, insbesondere die unerwünschte Erzeugung  von Röntgenstrahlung, bei der Nutzung ultrakurzer Laserimpulse in der Materialbearbeitung beschrieben. Neue Anforderungen an den Arbeitsschutz werden dargestellt.</abstract>
    <enrichment key="eventName">SPECTARIS, Deutscher Industrieverband für optische, medizinische und mechatronische Technologien e.V., Veranstaltung Technische Kommission Photonik</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">27.11.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jörg Krüger</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Ultrakurze Laserimpulse</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Materialbearbeitung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Röntgenstrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Arbeitsschutz</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>47002</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>3025</pageFirst>
    <pageLast>3038</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>9</volume>
    <type>article</type>
    <publisherName>Beilstein-Institut zur Förderung der Chemischen Wissenschaften</publisherName>
    <publisherPlace>Frankfurt, M.</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Femtosecond laser-assisted fabrication of chalcopyrite micro-concentrator photovoltaics</title>
    <abstract language="eng">Micro-concentrator solar cells offer an attractive way to further enhance the efficiency of planar-cell technologies while saving absorber material. Here, two laser-based bottom-up processes for the fabrication of regular arrays of CuInSe2 and Cu(In,Ga)Se2 microabsorber islands are presented, namely one approach based on nucleation and one based on laser-induced forward transfer.&#13;
Additionally, a procedure for processing these microabsorbers to functioning micro solar cells connected in parallel is demonstrated. The resulting cells show up to 2.9% efficiency and a significant efficiency enhancement under concentrated Illumination.</abstract>
    <parentTitle language="eng">Beilstein journal of nanotechnology</parentTitle>
    <identifier type="doi">10.3762/bjnano.9.281</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-470026</identifier>
    <identifier type="issn">2190-4286</identifier>
    <enrichment key="date_peer_review">02.01.2019</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>F. Ringleb</author>
    <author>Stefan Andree</author>
    <author>B. Heidmann</author>
    <author>Jörn Bonse</author>
    <author>K. Eylers</author>
    <author>O. Ernst</author>
    <author>T. Boeck</author>
    <author>M. Schmid</author>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chalcopyrite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser patterning</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced forward transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro-concentrator solar cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Photovoltaics</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/47002/2018-Ringleb-BeilsteinJNanotechnol9_3025.pdf</file>
  </doc>
  <doc>
    <id>46075</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Femtosecond laser micromachining</title>
    <abstract language="eng">The presentation reviews femtosecond laser ablation experiments on metals, semiconductors, dielectrics, and biological materials.</abstract>
    <enrichment key="eventName">19th Erwin Schrödinger Colloquium</enrichment>
    <enrichment key="eventPlace">Vienna, Austria</enrichment>
    <enrichment key="eventStart">24.09.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser ablation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser micromachining</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ultrashort pulse laser</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>46077</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Ultrakurze Laserimpulse in der Materialbearbeitung: Anwendungen und Sicherheitsaspekte</title>
    <abstract language="deu">Im Überblicksvortrag werden Untersuchungen zur Laser-Mikro- und Nanostrukturierung mit Femtosekunden-Laserimpulsen und ausgewählte Anwendungen, z.B. in der Photovoltaik und Biomedizin, vorgestellt. Aktuelle Fragestellungen zur sicheren Prozessführung, wie die mögliche Erzeugung von Röntgenstrahlung beim Laserbearbeitungsprozess und unerwünschte Partikelemissionen, werden aufgegriffen.</abstract>
    <enrichment key="eventName">Laserverbund Berlin Brandenburg, 89. Laserstammtisch Berlin Brandenburg - Laser für die Materialbearbeitung</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">17.09.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jörg Krüger</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Lasermikrobearbeitung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Femtosekundenlaser</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Photovoltaik</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Biomedizin</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Lasersicherheit</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Röntgenemission</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>46831</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Femtosecond laser-assisted photovoltaic bottom-up strategies</title>
    <abstract language="eng">A promising technology in photovoltaics is based on micro-concentrator solar cells, where the photovoltaic active area is realized as an array of sub-millimeter sized thin-film solar cells. Different approaches to produce micro-sized precursors of CIGSe absorbers on molybdenum are presented using 30-fs laser pulses at 790 nm wavelength. On the one hand, a multi pulse surface structuring of the molybdenum or the underlying glass substrate and a subsequent physical vapor deposition (PVD) process were used for a site-selective aggregation of indium droplets. On the other hand, a single pulse laser-induced forward transfer (LIFT) was utilized to selectively deposit combined copper/indium/gallium precursor pixels on the molybdenum back contact of the solar cell. It was demonstrated that a postprocessing of the laser-generated micro-sized precursors results in an array of working CIGSe solar cells with an efficiency of 2.9% for 1 sun Illumination.</abstract>
    <enrichment key="eventName">Leibniz-Institut für Oberflächenmodifizierung (IOM), Institutskolloquium</enrichment>
    <enrichment key="eventPlace">Leipzig, Germany</enrichment>
    <enrichment key="eventStart">29.11.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser patterning</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced forward transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CIGSe</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro solar cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Light concentration</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>44905</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>801, 1</pageFirst>
    <pageLast>19</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>11</volume>
    <type>article</type>
    <publisherName>MDPI AG</publisherName>
    <publisherPlace>Basel, Switzerland</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Femtosecond laser texturing of surfaces for tribological applications</title>
    <abstract language="eng">Laser texturing is an emerging technology for generating surface functionalities on basis of optical, mechanical, or chemical properties. Taking benefit of laser sources with ultrashort (fs) pulse durations features outstanding precision of machining and negligible rims or burrs surrounding the laser-irradiation zone. Consequently, additional mechanical or chemical post-processing steps are usually not required for fs-laser surface texturing (fs-LST). This work aimed to provide a bridge between research in the field of tribology and laser materials processing. The paper reviews the current state-of-the-art in fs-LST, with a focus on the tribological performance (friction and wear) of specific self-organized surface structures (so-called ripples, grooves, and spikes) on steel and titanium alloys. On the titanium alloy, specific sickle-shaped hybrid micro-nanostructures were also observed and tribologically tested. Care is taken to identify accompanying effects affecting the materials hardness, superficial oxidation, nano- and microscale topographies, and the role of additives contained in lubricants, such as commercial engine oil.</abstract>
    <parentTitle language="eng">Materials</parentTitle>
    <identifier type="doi">10.3390/ma11050801</identifier>
    <identifier type="url">http://www.mdpi.com/1996-1944/11/5/801</identifier>
    <identifier type="issn">1996-1944</identifier>
    <enrichment key="date_peer_review">18.05.2018</enrichment>
    <author>Jörn Bonse</author>
    <author>Sabrina V. Kirner</author>
    <author>Michael Griepentrog</author>
    <author>Dirk Spaltmann</author>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser processing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Surface texture</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced periodic surface structures (LIPSS)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Friction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wear</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>44843</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>Article 407, 1</pageFirst>
    <pageLast>8</pageLast>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>124</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">X-ray emission as a potential hazard during ultrashort pulse laser material processing</title>
    <abstract language="eng">In laser machining with ultrashort laser pulses unwanted X-ray radiation in the keV range can be generated when a critical laser intensity is exceeded. Even if the emitted X-ray dose per pulse is low, high laser repetition rates can lead to an accumulation of X-ray doses beyond exposure safety limits. For 925 fs pulse duration at a center wavelength of 1030 nm, the X-ray emission was investigated up to an intensity of 2.6 × 10^14 W/cm2. The experiments were performed in air with a thin disk laser at a repetition rate of 400 kHz. X-ray spectra and doses were measured for various planar target materials covering a wide range of the periodic table from aluminum to tungsten. Without radiation shielding, the measured radiation doses at this high repetition rate clearly exceed the regulatory limits. Estimations for an adequate radiation shielding are provided.</abstract>
    <parentTitle language="eng">Applied physics A</parentTitle>
    <identifier type="doi">10.1007/s00339-018-1828-6</identifier>
    <identifier type="issn">0947-8396</identifier>
    <identifier type="issn">1432-0630</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-448431</identifier>
    <enrichment key="date_peer_review">14.06.2018</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Herbert Legall</author>
    <author>Christoph Schwanke</author>
    <author>Simone Pentzien</author>
    <author>G. Dittmar</author>
    <author>Jörn Bonse</author>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced X-ray emission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ultrashort laser material interaction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiation protection</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/44843/2018-Legall-APA124_407.pdf</file>
  </doc>
  <doc>
    <id>45128</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>35</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation>Universität Stuttgart, Institut für Strahlwerkzeuge (IFSW)</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Surface functionalization by laser-induced periodic surface structures (LIPSS)</title>
    <abstract language="eng">In this contribution the mechanisms of formation and current applications of LIPSS are reviewed, including the colorization of technical surfaces, the control of surface wetting properties, the mimicry of the natural texture of animal integuments, the tailoring of surface colonization by bacterial biofilms, and the improvement of the tribological performance of nanostructured metal surfaces.</abstract>
    <parentTitle language="eng">10th Stuttgart Laser Technology Forum 2018, Book of Abstracts</parentTitle>
    <enrichment key="eventName">10th Stuttgart Laser Technology Forum 2018</enrichment>
    <enrichment key="eventPlace">Stuttgart, Germany</enrichment>
    <enrichment key="eventStart">05.06.2018</enrichment>
    <enrichment key="eventEnd">06.06.2018</enrichment>
    <author>Jörn Bonse</author>
    <author>Sabrina V. Kirner</author>
    <author>Nadja Epperlein</author>
    <author>Dirk Spaltmann</author>
    <author>Jörg Krüger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced periodic surface structures (LIPSS)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser ablation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Surface functionalization</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wetting</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Tribology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Biofilms</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Graue Literatur</collection>
  </doc>
  <doc>
    <id>43626</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>27, 1</pageFirst>
    <pageLast>13</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>124</volume>
    <type>article</type>
    <publisherName>Springer-Verlag</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Modelling periodic structure formation on 100Cr6 steel after irradiation with femtosecond-pulsed laser beams</title>
    <abstract language="eng">We investigate the periodic structure formation upon intense femtosecond pulsed irradiation of chrome steel (100Cr6) for linearly polarised laser beams. The underlying physical mechanism of the laser-induced periodic structures is explored, their spatial frequency is calculated and theoretical results are compared with experimental observations. The proposed theoretical model comprises estimations of electron excitation, heat transfer, relaxation processes, and hydrodynamics-related mass transport. Simulations describe the sequential formation of sub-wavelength ripples and supra-wavelength grooves. In addition, the influence of the laser wavelength on the periodicity of the structures is discussed. The proposed theoretical investigation offers a systematic methodology towards laser processing of steel surfaces with important applications.</abstract>
    <parentTitle language="eng">Applied Physics A</parentTitle>
    <identifier type="doi">10.1007/s00339-017-1443-y</identifier>
    <identifier type="url">https://link.springer.com/article/10.1007/s00339-017-1443-y</identifier>
    <identifier type="issn">0947-8396</identifier>
    <identifier type="issn">1432-0630</identifier>
    <enrichment key="date_peer_review">25.01.2018</enrichment>
    <author>G. D. Tsibidis</author>
    <author>A. Mimidis</author>
    <author>E. Skoulas</author>
    <author>Sabrina V. Kirner</author>
    <author>Jörg Krüger</author>
    <author>Jörn Bonse</author>
    <author>E. Stratakis</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser-induced periodic surface structures</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser ablation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Steel</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>44560</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>326, 1</pageFirst>
    <pageLast>10</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>124</volume>
    <type>article</type>
    <publisherName>Springer-Verlag</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Tribological performance of titanium samples oxidized by fs-laser radiation, thermal heating, or electrochemical anodization</title>
    <abstract language="eng">Commercial grade-1 titanium samples (Ti, 99.6%) were treated using three alternative methods, (i) femtosecond laser processing, (ii) thermal heat treatment, and (iii) electrochemical anodization, respectively, resulting in the formation of differently conditioned superficial titanium oxide layers. The laser processing (i) was carried out by a Ti:sapphire laser (pulse duration 30 fs, central wavelength 790 nm, pulse repetition rate 1 kHz) in a regime of generating laser-induced periodic surface structures (LIPSS). The experimental conditions (laser fluence, spatial spot overlap) were optimized in a sample-scanning setup for the processing of several square-millimeters large surface areas covered homogeneously by these nanostructures. The differently oxidized titanium surfaces were characterized by optical microscopy, micro Raman spectroscopy, variable angle spectroscopic ellipsometry, and instrumented indentation testing. The tribological performance was characterized in the regime of mixed friction by reciprocating sliding tests against a sphere of hardened steel in fully formulated engine oil as lubricant. The specific tribological performance of the differently treated surfaces is discussed with respect to possible physical and chemical mechanisms.</abstract>
    <parentTitle language="eng">Applied Physics A</parentTitle>
    <identifier type="doi">10.1007/s00339-018-1745-8</identifier>
    <identifier type="issn">0947-8396</identifier>
    <identifier type="issn">1432-0630</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-445609</identifier>
    <enrichment key="date_peer_review">12.04.2018</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Sabrina V. Kirner</author>
    <author>Nadine Slachciak</author>
    <author>Anna Maria Elert</author>
    <author>Michael Griepentrog</author>
    <author>Daniel Fischer</author>
    <author>Andreas Hertwig</author>
    <author>Mario Sahre</author>
    <author>Ilona Dörfel</author>
    <author>Heinz Sturm</author>
    <author>Simone Pentzien</author>
    <author>Robert Koter</author>
    <author>Dirk Spaltmann</author>
    <author>Jörg Krüger</author>
    <author>Jörn Bonse</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Femtosecond laser</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Titanium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Oxidation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Friction</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/44560/2018-Kirner-APA124_326.pdf</file>
  </doc>
</export-example>
