By Keming Du In the past years, a strongly increasing interest has developed in laser ablation processes for the removal of thin films, for instance the production of photovoltaic and display devices. The principal advantages of a laser in comparison with other processes are the high flexibility in combination with precision and quality of the […]
Laser Editorials
U.S. Strong for Industrial Laser Processing
David A. Belforte The recovery from the 2008/2009 global recession was, according to experts, going to take at least three years to reach pre-recession levels. In the United States, manufacturing companies, reacting to orders from pent-up demand and delayed 2009 buying plans, found their production taxed to meet a rapidly growing order book in 2010 […]
Wavelength Dependency in High Power Laser Cutting
By Stephan Ziermann and David Havrilla Laser cutting and welding have been around for more than 30 years. Within those three decades there has never been a greater variety of high power laser types and wavelengths to choose from than there is today. There are many considerations when choosing the right laser for any given […]
Laser Beam Welding with High Frequency
By Mathies Kraetzsch Copper is known for its excellent electrical properties that make it predestined for the production of cables and electrical connections. Aluminum, which is lighter and cheaper than copper, also provides very good electrical properties. The Fraunhofer IWS Dresden has set the task to join both materials in a professional and long-lasting way. […]
Femtosecond Laser Micro/Nanomachining of Glass Materials for Optofluidic Applications and Beyond
By Ya Cheng Nowadays, microfluidic systems for controlling and manipulating tiny volumes of liquids with high precision have attracted significant attention due to their capability of downsizing both chemistry and biology. In addition, it is often desirable to incorporate micro-optical structures into the microfluidic chips, which leads to not only compact chemical and biological sensors, […]