ICALEO 2006 Paper #M1103 (Direct Laser Pyrolysis of Nanostructured Micro Components)
Direct Laser Pyrolysis of Nanostructured Micro Components
Authors:
Jean Pierre Bergmann, TU Ilmenau; Ilmenau Germany
Johannes Wilden, TU Ilmenau; Ilmenau Germany
Sebastian Schlichting, TU Ilmenau; Ilmenau Germany
Presented at ICALEO 2006
The presentation discusses the production of free form nanostructure components for micro system engineering or rapid prototyping applications. In contrast to previous procedures, e.g. laser sintering of ceramics powders, the ceramic components will be directly produced from a liquid precursor with laser generating. The component will be built up layer for layer, thus shrinkage and disintegration from outgassing can be avoided. During ...$28.00
ICALEO 2006 Paper #M1104 (Raman Mapping of Single-walled Carbon Nanotubes at Nanoscales with Micro-Raman)
Raman Mapping of Single-walled Carbon Nanotubes at Nanoscales with Micro-Raman
Authors:
K.J. Yi, University of Nebraska; Lincoln NE USA
J. Shi, University of Nebraska; Lincoln NE USA
Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
Presented at ICALEO 2006
Single-walled carbon nanotubes (SWCNTs) are ideal systems for studying the transport of electrons in one dimension and have commercial potential as nanoscale wires, transistors and sensors. Raman scattering from SWCNTs provides an effective and non-destructive means to reveal the remarkable structure, the unusual electronic and photonic properties of individual nanotubes. In this study, the SWCNTs were gro...$28.00
ICALEO 2006 Paper #M1105 (Connection of Macro-sized Double-walled Carbon Nanotube Strands by Current-assisted Laser Irradiation)
Connection of Macro-sized Double-walled Carbon Nanotube Strands by Current-assisted Laser Irradiation
Authors:
Tao Gong, Tsinghua University; Beijing Peoples Republic of China
Yong Zhang, Tsinghua University; Beijing Peoples Republic of China
Dehai Wu, Tsinghua University; Beijing Peoples Republic of China
Kunlin Wang, Tsinghua University; Beijing Peoples Republic of China
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Wenjin Liu, Tsinghua University; Beijing Peoples Republic of China
Presented at ICALEO 2006
Since their discovery in 1991, carbon nanotubes (CNTs) have demonstrated many remarkable mechanical, ...$28.00
ICALEO 2006 Paper #M1106 (Aligned Synthesis of Carbon Nanotubes by Laser-assisted Chemical Vapor Deposition)
Aligned Synthesis of Carbon Nanotubes by Laser-assisted Chemical Vapor Deposition
Authors:
J Shi, University of Nebraska; Lincoln NE USA
K.J. Yi, University of Nebraska; Lincoln NE USA
Y.F. Lu, University of Nebraska; Lincoln NE USA
Presented at ICALEO 2006
With the recent advances of the aligned and position-controlled growth of carbon nanotubes (CNTs), there have been intensive studies in the optimizing of growth process for fabrication of various CNT-based electronic devices. Using conventional thermal chemical vapor deposition (CVD) method, substrates as well as the chamber need to be globally heated to sufficient high reaction temperature. In this study, we develo...$28.00
ICALEO 2006 Paper #M1107 (Light Emission Characterization from Multiwalled Carbon Nanotubes under CO2 Laser Irradiation)
Light Emission Characterization from Multiwalled Carbon Nanotubes under CO2 Laser Irradiation
Authors:
Yong Zhang, Tsinghua University; Beijing Peoples Republic of China
Dehai Wu, Tsinghua University; Beijing Peoples Republic of China
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Tao Gong, Tsinghua University; Beijing Peoples Republic of China
Wenjin Liu, Tsinghua University; Beijing Peoples Republic of China
Presented at ICALEO 2006
Since their discovery in 1991, carbon nanotubes (CNTs) have demonstrated many remarkable mechanical, electrical and thermal properties, showing very attractive potentials in many fields. Thi...$28.00
ICALEO 2006 Paper #M1202 (Study of Magnetic Confinement in Laser-induced Plasmas by Optical Emission Spectroscopy and Fast Photography)
Study of Magnetic Confinement in Laser-induced Plasmas by Optical Emission Spectroscopy and Fast Photography
Authors:
X.K. Shen, University of Nebraska; Lincoln NE USA
T. Gebre, University of Nebraska; Lincoln NE USA
Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
Presented at ICALEO 2006
The dynamics and magnetic confinement effects of laser-induced plasmas expanding across an external transverse magnetic field were investigated by optical emission spectroscopy and fast photography. KrF excimer laser pulses with a pulse duration of 23 ns and a wavelength of 248 nm were used to produce plasmas from Cu targets. Various optical emission lines show an obvious ...$28.00
ICALEO 2006 Paper #M1203 (New Experimental Approach to Study Laser Matter Interaction during Drilling in Percussion Regime)
New Experimental Approach to Study Laser Matter Interaction during Drilling in Percussion Regime
Authors:
Schneider Matthieu, GERAILP/LALP; Arcueil France
Laurent Berthe, GERAILP/LALP; Arcueil France
Maryse Muller, CNRS/GERAILP; Arcueil France
Remy Fabbro, GERAILP/LALP; Arcueil France
Presented at ICALEO 2006
Laser drilling is a well-established process in aerospace industry. However quality and geometry of holes do not get under control in an absolute way. Moreover, drilling understanding is complicated due to the number of parameters, physical phenomena and material properties.In this paper, we describe the mechanism of laser-matter interaction during dr...$28.00
ICALEO 2006 Paper #M201 (3D-laser Nanofabrication: Diffractive Holography Versus Femtosecond Direct Writing (Invited Paper))
3D-laser Nanofabrication: Diffractive Holography Versus Femtosecond Direct Writing (Invited Paper)
Authors:
Peter Herman, University of Toronto; Toronto ON Canada
Presented at ICALEO 2006
The fabrication of three-dimensional (3-D) periodic optical media poses significant challenges at the forefront of todays nanotechnology to harness the new optical phenomena in nanostructures much smaller than the wavelength of light. Nanooptics has emerged as the new discipline that promises new optical materials photonic bandgap crystals, metamaterials, plasmonics to guide light at dimensions below conventional diffraction limits or probe electron wavefunctions in proteins with powerfully enhance ...$28.00
ICALEO 2006 Paper #M202 (Influence of the Repetition Rate on Self Organized Surface Structuring During Femtosecond Pulsed Laser Ablation)
Influence of the Repetition Rate on Self Organized Surface Structuring During Femtosecond Pulsed Laser Ablation
Authors:
Johan Meijer, University of Twente; Enschede Netherlands
Max Groenendijk, University of Twente; Enschede Netherlands
Presented at ICALEO 2006
Self induced surface structuring has been observed during ablation with a high repetition rate femtosecond pulsed laser. Dependant on process parameters a periodic ripple pattern or a chaotic structure emerges. This paper investigates the influence of the repetition rate of the laser source on the self structuring process. Experiments are presented that evidence a strong relation between the used rate and the emerging chaot...$28.00
ICALEO 2006 Paper #M203 (Femtosecond Laser Structuring of PCL and PET Electrospun Nanofiber Mesh)
Femtosecond Laser Structuring of PCL and PET Electrospun Nanofiber Mesh
Authors:
Hae Woon Choi, Ohio State University; Columbus OH USA
Jed Johnson, Ohio State University; Columbus OH USA
Dave F Farson, Ohio State University; Columbus OH USA
John Lannutti, Ohio State University; Columbus OH USA
Presented at ICALEO 2006
Femtosecond laser machining of electrospun poly-caprolactone (PCL) and polyethylene terephthalate (PET) nanofiber meshes is studied. Structured meshes are needed to promote and control cell growth in tissue scaffold applications. Femtosecond laser radiation with fundamental (775nm) and SHG (338nm) wavelengths was effectively used to fabric...$28.00