• PICALO 2006 Paper #M401 (A User-friendly Simulation Tool to Facilitate Writing of Complex Part Programs for Laser Micromachining)

    A User-friendly Simulation Tool to Facilitate Writing of Complex Part Programs for Laser Micromachining
    Authors:
    Richard Hume, IRIS, Swinburne Univ. of Technology; Deepdene, Victoria Australia
    Jason Hayes, IRIS, Swinburne Univ. of Technology; Hawthorn, Victoria Australia
    Pio Iovenitti, IRIS, Swinburne Univ. of Technology; Hawthorn, Victoria Australia
    Presented at PICALO 2006

    Excimer micromachining tools used to produce micromachined parts are often controlled by manually written numerical control (NC) part programs in RS-274 "G" and "M" codes, or NC-code. The manual creation of the part programs in NC-code is a time-consuming process for users and relies on their exper...

    $28.00

  • PICALO 2006 Paper #M402 (Micro Joining and Cutting with a Single Mode Fiber Laser)

    Micro Joining and Cutting with a Single Mode Fiber Laser
    Authors:
    Mohammed Naeem, GSI Group, Inc.; Rugby Great Britain
    Presented at PICALO 2006

    Since the early developments of laser micro machining, the lamp pumped pulsed Nd: YAG laser has been the source of choice. Single mode fiber lasers have recently emerged as potential alternative sources for laser micro machining. These lasers with diffraction limited beam quality offer many advantages such as small spot size, high power density, enhanced processing speeds, reduced heat affected zone for both cutting and joining applications respectively. In this work, we will provide cutting and welding data achieved with a 100W single mode fiber for a ...

    $28.00

  • PICALO 2006 Paper #M404 (Optical Surface Profilometry of Low Reflectance Materials - Evaluation as a Laser Processing Diagnostic)

    Optical Surface Profilometry of Low Reflectance Materials – Evaluation as a Laser Processing Diagnostic
    Authors:
    Adam Joyce, Department of Physics; Sydney Australia
    Deb Kane, Macquarie University; Sydney Australia
    Presented at PICALO 2006

    Optical surface profilometry is a technique which has advantages over other profilometry techniques (stylus profilometry, AFM) of being non contact and being able to profile comparatively large areas in a single "z-scan". Thus, it is employed in monitoring surface quality and measuring surface form in high technology manufacturing processes and quality assurance, as well as in research and development contexts. Its application to optical materia...

    $28.00

  • PICALO 2006 Paper #Plenary (Femtosecond Pulsed Laser Induced Shape Change of Metallic Nanoparticles and its Application to Optical Data Storage)

    Femtosecond Pulsed Laser Induced Shape Change of Metallic Nanoparticles and its Application to Optical Data Storage
    Authors:
    James Chon, Swinburne Univ. of Tech.; Hawthorn Australia
    Craig Bullen, Swinburne University of Technology; Hawthorn Australia
    Min Gu, Swinburne University of Technology; Hawthorn Australia
    Presented at PICALO 2006

    Metallic nanoparticles exhibit fascinating optical properties due to the surface plasmons * the collective oscillation of electron cloud within the particle. Surface plasmon can be at a resonant condition with the driving electromagnetic wave, and its resonant peak is shown to be tunable at various wavelengths of light with the shape a...

    $28.00

  • PICALO 2006 Paper #Plenary (Holistic Development of High Power Laser Sources and Corresponding Applications)

    Holistic Development of High Power Laser Sources and Corresponding Applications
    Authors:
    Reinhart Poprawe, Fraunhofer ILT; Aachen Germany
    Peter Loosen, Fraunhofer-Institute für Laser Technology; Aachen Germany
    Wolfgang Schulz, Fraunhofer-Institute für Laser Technology; Aachen Germany
    Presented at PICALO 2006

    With the advent of high power diode lasers of lifetimes in excess of 10,000 hours at long term operational power levels in the range of 100W per diode bar, diode pumped concepts moved into their rightful role as next generation sources. The main reason for this trend is the combination of laser efficiencies in the range of 15 to 25% at powers of several kW with t...

    $28.00

  • PICALO 2006 Paper #Plenary (Laser Applications in Additive Manufacturing: Spanning Microns to Meters)

    Laser Applications in Additive Manufacturing: Spanning Microns to Meters
    Authors:
    James Sears, South Dakota
    School of Mines & Technology; Rapid City SD USA

    Presented at PICALO 2006

    Lasers are currently being applied in many aspects of conventional material processing including cutting, welding, drilling and machining. In recent years laser have been increasingly applied in the development of additive manufacturing technologies ranging from rapid prototyping to rapid manufacturing. The Laser additive manufacturing (LAM) technologies encompass a wide range of applications on scales that cover six orders of magnitude from microns to meters. LAM technologies are processes that use computer contr...

    $28.00

  • PICALO 2006 Paper #Plenary (Lithography by Maskless Laser Direct Writing)

    Lithography by Maskless Laser Direct Writing
    Authors:
    Andreas Ostendorf, Laser Zentrum Hannover E.V.; Hannover Germany
    Frank Meyer, Laser Zentrum Hannover e.V.; Hannover Germany
    Juergen Koch, Laser Zentrum Hannover e.V.; Hannover Germany
    Boris N. Chichkov, Laser Zentrum Hannover e.V.; Hannover Germany
    Presented at PICALO 2006

    Conventional lithography by laser mask projection has several drawbacks in terms of flexibility and costs which result in its use only for mass production. Small batches can be processed more easily and cost effectively by using direct laser writing. Laser direct ablation of resists and direct laser photopolymerisation can be used to ...

    $28.00

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