By Geoff Giordano New maximum permissible exposure limits (MPEs), new definitions and newly rewritten sections are among the main highlights of the just-revised parent standard for laser safety, the ANSI Z136.1-2014. Updated for the first time in the last seven years, the new American National Standard for Safe Use of Lasers will be available through […]
Post-Processing of LAM Parts with Ultrafast Lasers
By Ilya Mingareev, Tobias Bonhoff, Ashraf F. El-Sherif, Wilhelm Meiners, Ingomar Kelbassa, Tim Biermann and Martin Richardson Laser Additive Manufacturing (LAM) is a rapidly developing field of advanced fabrication technologies that will benefit many industries by enabling near-net shape manufacturing of high-value components from metals, ceramics and compound materials. However, the geometry and the surface quality of parts […]
Integrated Rapid 3D Mapping and Laser Additive Repair of Gas Turbine Engine Components
By Lijue Xue, Matt Donovan, Yangsheng Li, Jianyin Chen, Shaodong Wang and Glen Campbell Jet engines need to run as hot as possible to extract maximum energy from fuel. Combustion components are subjected to extremely harsh environment, running at elevated temperature with high vibration and pressure, which results in varying degrees of wear and fretting. […]
News from CREOL: A New Undergraduate Photonics Degree and the Annual Industrial Affiliates Meeting
A new undergraduate degree program in Photonic Science and Engineering started in the fall of 2013 at the University of Central Florida. It is the State of Florida’s only such program, and one of only a few in the nation. Photonics plays a huge role in the Florida’s economy, with over 270 photonics companies employing […]
Imaging at One Trillion Frames per Second
By Ramesh Raskar and Christopher Barsi High-speed imaging is a long-standing goal in optics, with applications in spectral dynamics, motion analysis, and three-dimensional imaging. Currently, commercially available systems can offer sensors operating at one million frames per second at reduced spatial resolution.1 In the lab setting, serial time-encoding of 2D images have provided 100 ps […]