By: Matti Manninen, Aarne Sundberg, Heidi Piili, Antti Salminen Lappeenranta University of Technology, Laser Processing Research Group, Finland Aalto University, Department of Biotechnology and Chemical Technology, Finland Machine Technology Centre Turku Ltd, Finland Distillation is the predominantly used separation method in chemical engineering. The device presented in this paper is called a microdistillation column, because the […]
Laser Insights
Energy, Cost and Throughput Efficient Processing of Solar Cells with Tailored Lasers
By: Alexander Schell and Keming Du EdgeWave GmbH, Germany In order to reduce production costs and to increase throughput, great efforts have been put to explore efficient processing in full-automated manufacturing lines. Because of non-contact processing and high flexibility the use of lasers in photovoltaic production has grown in popularity, for example laser fired contact, drilling […]
In-situ Composition Analysis of Direct Metal Deposition Process using Optical Emission Spectroscopy of Laser Induced Plasma
By: Lijun Song and Jyoti Mazumder Center for Laser Aided Intelligent Manufacturing, University of Michigan The ability to monitor the elemental composition in real time for laser aided rapid manufacturing is essential for both estimation of elemental losses and elemental control. Traditionally X-ray fluorescence (XRF) and energy dispersive X-ray spectroscopy (EDS) have been widely used for […]
Carving Extremely Hard and Brittle Material with a Laser Beam
By: Dr. Lim Gnian Cher Laser is a potential tool for machining structural profiles on hard and brittle materials such as ceramics and carbides that traditional tools and methods find them near impossible to do. EDM (electro-discharge machining) may be used for substrates that are conductive, such as tungsten carbide. However, drilling small holes or […]
Induction of Electrical Functionality in Soda-lime Glass by Laser Ablation Backwriting
By: R. Lahoz, L. A. Angurel, M. T. Flores-Arias, G. F. de la Fuente Instituto de Ciencia de Materiales de Aragón, Unidad Asociada de Óptica y Microoptica GRIN Laser ablation backwriting has been recently reported useful to induce diverse functionalities in glass. In particular, it has been used to obtain planar waveguides and diffraction gratings which should […]