ICALEO 2009 Paper #P111 (An Overview of the Conventional Microprocessing and Laser Assisted Techniques for Fabricating Microscale Features)
An Overview of the Conventional Microprocessing and Laser Assisted Techniques for Fabricating Microscale Features
Authors:
Antti Salminen, Lappeenranta University of Technology, Laser Processing Research Group (Laboratory of Welding Technology and Laser Processing), Lappeenranta, Finland; Lappeenranta Finland
Heidi Piili, Lappeenranta University of Technology, Laser Processing Research Group (Laboratory of Welding Technology and Laser Processing), Lappeenranta, Finland; Lappeenranta Finland
Heidi Piili, LUT Laser, Lappeenranta University of Technology; Lappeenranta Finland
Matti Manninen, Lappeenranta University of Technology, Laser Processing Research Group (Laboratory of ...$28.00
ICALEO 2009 Paper #P112 (Interaction Between Laser Beam and Paper Materials)
Interaction Between Laser Beam and Paper Materials
Authors:
Heidi Piili, Lappeenranta University of Technology, Laser Processing Research Group (Laborato; Lappeenranta Finland
Antti Salminen, Lappeenranta University of Technology, Laser Processing Research Group (Laboratory of Welding Technology and Laser Processing), Lappeenranta, Finland; Lappeenranta Finland
Veli Kujanpää, Lappeenranta University of Technology, VTT Industrial Systems; Lappeenranta Finland
Presented at ICALEO 2009
It is commonly known that laser beam is suitable for cutting of paper materials. Even tough laser technology has been applied to paper material cutting since 1970s, there exists quite ...$28.00
ICALEO 2009 Paper #P114 (Laser Doping for Bandgap Engineering)
Laser Doping for Bandgap Engineering
Authors:
Geunsik Lim, University of Central Florida; Orlando FL USA
Nathaniel R. Quick, Applicote Associates, Llc; Orlando FL USA
Aravinda Kar, University of Central Florida; Orlando FL USA
Presented at ICALEO 2009
Laser doping is used to modify the reflectivity and refractive index of embedded regions in wide bandgap semiconductors for selective detection of gaseous chemical species. Each of the four quadrants of a 1 cm x 1 cm x 300 microns silicon carbide (SiC) sensor are laser doped with a different element; gallium, aluminum, scandium and phosphorus, respectively; to create energy levels that selectively absorb photon emissio...$28.00
ICALEO 2009 Paper #P116 (High Speed Laser Micro-Texturing of Si Wafer for Improved Light Trapping for Photo-Voltaic Application)
High Speed Laser Micro-Texturing of Si Wafer for Improved Light Trapping for Photo-Voltaic Application
Authors:
Ana Pena, The University of Manchester; Manchester Great Britain
Zengbo Wang, The University of Manchester; Manchester Great Britain
David Whitehead, The University of Manchester; Manchester Great Britain
Lin Li, The University of Manchester; Manchester Great Britain
Presented at ICALEO 2009
The demand for efficient, alternative sources of energy is a growing and crucial issue in todays world. Solar energy offers a vast, inexhaustible, free and clean option for future power needs. Although new technologies emerge every day, silicon-based solar...$28.00
ICALEO 2009 Paper #P118 (Microfabrication of Gratings Inside a Transparent Material using Femtosecond Laser Processing with Computer Generated Hologram)
Microfabrication of Gratings Inside a Transparent Material using Femtosecond Laser Processing with Computer Generated Hologram
Authors:
Hayato Kawashima, New Glass Forum; Tsukuba Japan
Masahiro Yamaji, New Glass Forum; Tsukuba Japan
Jun'Ichi Suzuki, New Glass Forum; Tsukuba Japan
Shuhei Tanaka, New Glass Forum; Tsukuba Japan
Presented at ICALEO 2009
We have developed a three-dimensional (3D) multiprocessing method using a Computer Generated Hologram (CGH) that generates a 3D structure inside transparent materials such as silica glass and PMMA. In this paper, we consider grating fabrication using femtosecond laser processing with CGH. Femtosecond laser proc...$28.00
ICALEO 2009 Paper #P119 (Femtosecond Laser Written Microstructures in PMMA and PDMS at 800nm for Photonic Applications)
Femtosecond Laser Written Microstructures in PMMA and PDMS at 800nm for Photonic Applications
Authors:
Deepak K.L.N., University of Hyderabad; Hyderabad India
R.S.S. Kumar, School of Physics, University of Hyderabad; Hyderabad India
Narayana Rao Desai, University of Hyderabad; Hyderabad India
Venugopal Rao Soma, University of Hyderabad; Hyderabad India
Presented at ICALEO 2009
Microstructures, including gratings and photonic crystal structures, have been fabricated in bulk PDMS and PMMA using femtosecond pulses. The variation of structure width with different writing conditions (focusing, speed, energy) has been investigated. Physical characterization of...$28.00
ICALEO 2009 Paper #P122 (CO2 Laser Welding Of AHSS)
CO2 Laser Welding Of AHSS
Authors:
John Pandremenos, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Presented at ICALEO 2009
This paper deals with the laser welding of advanced high strength steels (AHSS) which have properties promising for automotive applications. Experimental investigation of the CO2 laser welding of similar and dissimilar grades of AHSS (such as DP-W600 and PM-800) and new sandwich material is...$28.00
ICALEO 2009 Paper #P123 (Acoustic and Optical Sensing for Monitoring of Blind Laser Drilling Geometrical Features)
Acoustic and Optical Sensing for Monitoring of Blind Laser Drilling Geometrical Features
Authors:
Aristidis Stournaras, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
John Pandremenos, SPEAKER NOT AUTHOR - University of Patras; Patras Greece
Presented at ICALEO 2009
The scope of this study is to investigate the utilization of optical and acoustic emissions, originating from processing zone, for real-t...$28.00
ICALEO 2009 Paper #P124 (Energy Efficiency of the Laser Based Manufacturing Processes)
Energy Efficiency of the Laser Based Manufacturing Processes
Authors:
Apostolos Fysikopoulos, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
John Pandremenos, SPEAKER NOT AUTHOR - University of Patras; Patras Greece
Presented at ICALEO 2009
This paper deals with the energy efficiency of various laser machining processes. Analytical models are developed and employed for assessing the energy requiremen...$28.00
ICALEO 2009 Paper #P125 (Physical Study of Hybrid nd:YAG Laser -MAG Welding Process)
Physical Study of Hybrid nd:YAG Laser -MAG Welding Process
Authors:
Emilie Le Guen, Lalp (Cnrs); Paris France
Remy Fabbro, CNRS; Paris France
Frederic Coste, Lalp (Cnrs); Paris France
Muriel Carin, Limatb; Lorient France
Philippe Le Masson, Limatb; Lorient France
Presented at ICALEO 2009
Compared to laser or arc welding used separately, hybrid laser-MAG arc welding show decisive advantages when higher welding speeds, thicker materials, joint fit-up allowance, better molten pool stability, increase of metallurgical joint quality are required. The understanding of the main relevant involved physical processes are therefore very necessary if one ...$28.00