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  • ICALEO 2008 Paper #M504 (Influence of Laser Wavelength and Pulse Duration on Processing of Crystalline Silicon)

    Influence of Laser Wavelength and Pulse Duration on Processing of Crystalline Silicon
    Authors:
    Oliver Haupt, Laser Zentrum Hannover e.V.; Hannover Germany
    Aart Schoonderbeek, Laser Zentrum Hannover E.V.; Hannover Germany
    Lars Richter, Laser Zentrum Hannover E.V.; Hannover Germany
    Rainer Kling, Laser Zentrum Hannover E.V.; Hannover Germany
    Andreas Ostendorf, Laser Zentrum Hannover E.V.; Hannover Germany
    Presented at ICALEO 2008

    The paper discusses the fundamental interaction between laser light and crystalline silicon within a broad range of laser parameters like wavelength and pulse length with relevance for cutting and drilling. For laser pro...

    $28.00

  • ICALEO 2008 Paper #M503 (Excimer Laser Induced Microstructures on the Surface of Free Standing Gallium Nitride Wafers)

    Excimer Laser Induced Microstructures on the Surface of Free Standing Gallium Nitride Wafers
    Authors:
    D. Thomas, Department of Physics; Basel Switzerland
    F. Parker, National Centre for Laser Applications (NCLA); Galway Ireland
    A Dixit, National Centre for Laser Applications (Ncla); Galway Ireland
    U. Prendergast, NCLA; Galway Ireland
    A. Conneely, NCLA; Galway Ireland
    G.M. O'Connor, NCLA; Galway Ireland
    D. O'Mahony, Tyndall National Institute; Cork Ireland
    B. Corbett, Tyndall National Institute; Cork Ireland
    Presented at ICALEO 2008

    Gallium Nitride (GaN) is an important material as GaN based devices have re...

    $28.00

  • ICALEO 2008 Paper #M502 (Laser Structuring of Conducting Films on Transparent Substrates for Electronics Devices)

    Laser Structuring of Conducting Films on Transparent Substrates for Electronics Devices
    Authors:
    Gediminas Raciukaitis, Institute of Physics; Vilnius Lithuania
    Mindaugas Gedvilas, Institute of Physics; Vilnius Lithuania
    Paulius Gecys, Institute of Physics; Vilnius Lithuania
    Presented at ICALEO 2008

    The fast growing market of organic electronics, including organic light-emitting devices and thin-film solar cells, stimulates development of versatile technologies for patterning the thin-films on rigid and flexible substrates. Thin films of the transparent conducting oxides (TCO) and metals are important materials for making contacts, conductors and active elements.
    Las...

    $28.00

  • ICALEO 2008 Paper #M501 (Top Hat Laser Direct-write Processes in Semiconductor and Solar Cell Technology)

    Top Hat Laser Direct-write Processes in Semiconductor and Solar Cell Technology
    Authors:
    Frank Toennissen, LIMO Lissotschenko Mikrooptik Gmbh; Dortmund Germany
    Oliver Homburg, LIMO Lissotschenko Mikrooptik GmbH; Dortmund Germany
    Thomas Mitra, LIMO Lissotschenko Mikrooptik Gmbh; Dortmund Germany
    Vitalij Lissotschenko, LIMO Lissotschenko Mikrooptik Gmbh; Dortmund Germany
    Presented at ICALEO 2008

    Direct laser patterning of various materials has found its way into several micro-system production lines like inkjet printing, solar cell technology, flat-panel display production, semiconductors and medical treatment. Typically, TEM00 single-mode solid state lasers...

    $28.00

  • ICALEO 2008 Paper #M406 (Deep Microdrilling by Femtosecond Laser Pulses Delivered Through Hollow Core Fiber)

    Deep Microdrilling by Femtosecond Laser Pulses Delivered Through Hollow Core Fiber
    Authors:
    B.T. Kim, Kansas State University; Manhattan KS USA
    Q. Bian, Kansas State University; Manhattan KS USA
    S. Chen, Kansas State University; Manhattan KS USA
    S. Lei, Kansas State University; Manhattan KS USA
    Z. Chang, Kansas State University; Manhattan KS USA
    Presented at ICALEO 2008

    Femtosecond laser drilling of high aspect ratio microholes using laser pulses delivered through hollow core fiber is presented. The purpose is to study the feasibility of the process and the quality of the microholes. The microdrilling is performed using a Ti: Sapphire laser wi...

    $28.00

  • ICALEO 2008 Paper #M405 (Femto-second Pulse Conversion in Electro-optic Dendrimer)

    Femto-second Pulse Conversion in Electro-optic Dendrimer
    Authors:
    Anis Rahman, Applied Research & Photonics Inc.; Harrisburg PA USA
    Presented at ICALEO 2008

    An electro-optic (EO) dendrimer exhibits a higher chi^(2) value that is suitable for femto-second laser pulse conversion for terahertz generation at room temperature. This method of pump-terahertz conversion via EO rectification offers an inherent power scalability that is not limited by emission saturation or by heat dissipation. Generated radiation (T-rays) can be used for time-domain terahertz spectroscopy. A unique advantage of this technique is that molecular events can be monitored on a pico-second time scale (or in terahertz frequenc...

    $28.00

  • ICALEO 2008 Paper #M404 (Glass Strengthening with an Ultrafast Laser)

    Glass Strengthening with an Ultrafast Laser
    Authors:
    A. Streltsov, Corning Inc; Corning NY USA
    J. Helfinstine, Corning Inc.; Corning NY USA
    J. Price, Corning Inc.; Corning NY USA
    J. Schroeder, Corning Inc.; Corning NY USA
    J. Westbrook, Corning Inc.; Corning NY USA
    N. Borrelli, Corning Inc.; Corning NY USA
    Presented at ICALEO 2008

    We performed experiments on laser strengthening on a number of glasses and glass-ceramics. The objective of this study was to identify the mechanism of strengthening and to establish the correlation between the residual stress and the apparent fracture-toughness increase. After the laser exposure, the str...

    $28.00

  • ICALEO 2008 Paper #M403 (Efficiency Aspects in Processing of Metals with High-repetition-rate Ultra-short-pulse Lasers)

    Efficiency Aspects in Processing of Metals with High-repetition-rate Ultra-short-pulse Lasers
    Authors:
    Gediminas Raciukaitis, Institute of Physics; Vilnius Lithuania
    Marijus Brikas, Institute of Physics; Vilnius Lithuania
    Mindaugas Gedvilas, Institute of Physics; Vilnius Lithuania
    Presented at ICALEO 2008

    Production time and quality are main concerns in competition of laser technologies in microfabrication with other diverse methods. Ultra-short pulse lasers can offer extraordinary precision in nanometer scale when laser fluence is close to the ablation threshold. High pulse energies or high repetition rate are usually proposed to be used for an increase in productivit...

    $28.00

  • ICALEO 2008 Paper #M402 (Femtosecond Laser System Integration and Application Development)

    Femtosecond Laser System Integration and Application Development
    Authors:
    Glenn Simenson, Electro Scientific Industries; Portland OR USA
    Robert Hainsey, Electro Scientific Industries; Portland OR USA
    David Barsic, Electro Scientific Industries; Portland OR USA
    Eric Mottay, Amplitude Systemes; Pessac France
    Leo Baldwin, Electro Scientific Industries; Portland OR USA
    Robert Braunschweig, Amplitude Systemes; Pessac France
    Presented at ICALEO 2008

    Femtosecond laser technology continues to evolve and mature. Today, one can find production quality lasers operating with repetition rates in the 10's of kHz producing several Watts of powe...

    $28.00

  • ICALEO 2008 Paper #M401 (Black Silicon Recent Improvements for Photovoltaic Cells (Invited Presentation - 40 Minutes))

    Black Silicon Recent Improvements for Photovoltaic Cells (Invited Presentation - 40 Minutes)
    Authors:
    T. Sarnet, LP3 CNRS UMR 6182 Luminy; Marseille France
    R. Torres, LP3 CNRS UMR 6182 Luminy; Marseille France
    V. Vervisch, LP3 CNRS UMR 6182 Luminy; Marseille France
    P. Delaporte, LP3 CNRS UMR 6182 Luminy; Marseille France
    M. Sentis, LP3 CNRS UMR 6182 Luminy; Marseille France
    M. Halbwax, IEMN CNRS UMR 8520; Villeneuve d'Ascq cedex France
    J. Ferreira, IM2NP CNRS UMR 6122; Marseille France
    D. Barakel, IM2NP CNRS UMR 6122; Marseille France
    M. Pasquinelli, IM2NP CNRS UMR 6122; Marseille France
    S. Martin...

    $28.00

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