• ICALEO 2013 Paper #N403 (Laser Sintering Process of Ag Nanoparticle Based Ink on Polyethylene Terephthalate for Printed Electronics)

    Laser Sintering Process of Ag Nanoparticle Based Ink on Polyethylene Terephthalate for Printed Electronics
    Authors:
    Gnian Cher Lim, Singapore Institite of Manufacturing Technology; Singapore Singapore
    Juan Carlos Hernandez-Castaneda, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Gary Ka Lai Ng, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Lok Boon Keng, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Hong Yu Zheng, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Presented at ICALEO 2013

    The sintering of nanoparticle based inks is a key process in the manuf...

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  • ICALEO 2013 Paper #N302 (Laser Fabricated Nanoantennas for Near-Field Applications)

    Laser Fabricated Nanoantennas for Near-Field Applications
    Authors:
    Johannes Finger, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Martin Reininghaus, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Dirk Wortmann, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Zhao Cao, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Thomas Taubner, 1. Institute of Physics (Ia), Rwth Aachen University; Aachen Germany
    Presented at ICALEO 2013

    By irradiation of thin gold films with single pulses of fs-laser radiation, Gold nanoantennas with heights up to approximately 2 µm and tip...

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  • ICALEO 2013 Paper #N208 (Development of the Variable Pulsewidth Mode-Locked Femtosecond Laser Using Coherent Coupling)

    Development of the Variable Pulsewidth Mode-Locked Femtosecond Laser Using Coherent Coupling
    Authors:
    Yasuhiro Nishiyama, Kinki University; Higashiosaka Osaka Japan
    Minoru Yoshida, Kinki University; Higashiosaka Osaka Japan
    Hiraku Yabuno, Kinki University; Higashiosaka Osaka Japan
    Presented at ICALEO 2013

    Passive mode-locked pulse lasers applying erbium-doped fiber have about 100 fs pulsewidth that is near the Fourier-limited pulse. However, femtosecond pulses are often demanded for more longer pulsewidth, because high energy pulses are useful in processing. In this study we develop a continuously variable pulsewidth laser using novel method applying coherent coupling,...

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  • ICALEO 2013 Paper #N202 (Sub-Wavelength Patterning of Self-Assembled Organic Monolayers Via Non-Collinear Optical Parametric Amplifier)

    Sub-Wavelength Patterning of Self-Assembled Organic Monolayers Via Non-Collinear Optical Parametric Amplifier
    Authors:
    Andreas Aumann, Ruhr-Universitaet Bochum; Bochum Germany
    Stella Maragkaki, Ruhr-UniversitäT Bochum; Bochum Germany
    Benjamin Schops, Ruhr-UniversitäT Bochum; Bochum Germany
    Andreas Ostendorf, Ruhr-UniversitäT Bochum; Bochum Germany
    Florian Schulz, UniversitäT Duisburg-Essen; Essen Germany
    Anja Schroter, UniversitäT Duisburg-Essen; Essen Germany
    Steffen Franzka, UniversitäT Duisburg-Essen; Essen Germany
    Nils Hartmann, UniversitäT Duisburg-Essen; Essen Germany
    Presented at ICALEO 2013

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  • ICALEO 2013 Paper #N103 (Synthesis of gallium nitride nanoplates using laser-assisted metal organic chemical vapor deposition)

    Synthesis of gallium nitride nanoplates using laser-assisted metal organic chemical vapor deposition
    Authors:
    H.R. Golgir, University of Nebraska-Lincoln; Lincoln NE
    P Thirugnanam, University of Nebraska-Lincoln; Lincoln NE
    Y.S. Zhou, University of Nebraska-Lincoln; Lincoln NE
    Y. Gao, University of Nebraska-Lincoln; Lincoln NE
    Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
    Presented at ICALEO 2013

    The m-plane oriented gallium nitride (GaN) nanoplates were successfully grown on silicon (Si) substrates using laser-assisted metal organic chemical vapor deposition (L-MOCVD). The morphology and orientation of the nanoplates we...

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  • ICALEO 2013 Paper #N102 (Laser Assisted Production of Calcium Phosphate Nanoparticles from Marine Origin)

    Laser Assisted Production of Calcium Phosphate Nanoparticles from Marine Origin
    Authors:
    Juan Pou, University of Vigo; Vigo Spain
    Mohamed Boutinguiza, University of Vigo; Vigo
    Jesus Del Val, University of Vigo; Vigo Spain
    Antonio Riveiro, University of Vigo; Vigo Spain
    Rafael Comesana, University of Vigo; Vigo Spain
    Fernando Lusquinos, University of Vigo; Vigo Spain
    Presented at ICALEO 2013

    The first calcium phosphate based biomaterials were introduced in the market almost forty years ago and, due to the compositional resemblance with the mineral constituents of bones and teeth, they became extensively employed in biomedical app...

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  • ICALEO 2013 Paper #M906 (Laser Patterning of Thin Film Strain Gauges)

    Laser Patterning of Thin Film Strain Gauges
    Authors:
    Oliver Suttmann, Laser Zentrum Hannover e.V.; Hannover USA
    Jan F. Duesing, Laser Zentrum Hannover e.V.; Hannover Germany
    Juergen Koch, Laser Zentrum Hannover e.V.; Hannover Germany
    Ludger Overmeyer, Laser Zentrum Hannover e.V.; Hannover Germany
    Presented at ICALEO 2013

    Current trends of intelligent products and controlled processes show an increasing need for long-living sensors. Metal thin-film strain gauges are suitable for monitoring mechanical loads over the entire lifetime of a component. However, existing manufacturing methods can only pattern these gauges on flat components and in large quantities...

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  • ICALEO 2013 Paper #M903 (Experimental and Numerical Investigation on Short Pulsed Laser Welding of Stainless Steel Foils)

    Experimental and Numerical Investigation on Short Pulsed Laser Welding of Stainless Steel Foils
    Authors:
    Hui-chi Chen, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Presented at ICALEO 2013

    Today, there is a miniaturization trend in ultra-precision laser micro-welding applications. It is due to industrial products or components are being made smaller to save space or reduce energy consumptions. For example, laser hermetic sealing of implantable devices, microwave enclosures, batteries, sensors, etc. Since these devices are generally heat-sensitive, a proper control of energy input is necessary in order to avoid any heat damage. Laser micro-welding by pulsed laser systems ...

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  • ICALEO 2013 Paper #M902 (3D Finite Element Modeling of Laser-Assisted Maskless Micro-Deposition)

    3D Finite Element Modeling of Laser-Assisted Maskless Micro-Deposition
    Authors:
    Ehsan Toyserkani, University of Waterloo; Waterloo ON Canada
    Amir Azhari, University of Waterloo; Waterloo ON Canada
    Elahe Jabari, University of Waterloo; Waterloo ON Canada
    Presented at ICALEO 2013

    The manuscript will address a 3D finite element modeling of a laser-assisted maskless micro-deposition process (aka micro laser sintering/cladding) where it is utilized in the production of micro-tracks composed of silver nano-particles. The model is established through a coupled heat conduction equation with strain/stress constitutive physics in the presence of a moving continuous or pulsed las...

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  • ICALEO 2013 Paper #M808 (Temperature Profile in Thin Wires during Laser Heating.)

    Temperature Profile in Thin Wires during Laser Heating.
    Authors:
    Thiwanka Wickramasooriya, Laser-Advanced Manufacturing, Materials and Micro-Processing Laboratory; Orlando FL USA
    Aravinda Kar, Laser-Advanced Manufacturing, Materials and Micro-Processing Laboratory; Orlando FL USA
    Raj Vaidyanathan, Advanced Materials Processing and Analysis Center; Orlando FL USA
    Presented at ICALEO 2013

    The temperature distribution in a moving thin wire heated by a rectangular profile laser beam is studied. The output Gaussian profile beam of a laser system is transformed to a rectangular profile beam and the corresponding laser irradiance is integrated in the transverse direction to o...

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