The Laser-Assisted Nano Engineering laboratory in the Department of Electrical & Computer Engineering at the University of Nebraska–Lincoln is seeking a qualified individual to fulfill a non-tenure track Research Associate Professor Position on one-year fixed-term basis (10/01/2015 to 09/30/2016), with the possibility of renewal based on performance and available funding. Applicants should possess a Ph.D. […]
Laser Safety Community Focused on Safeguarding Consumers Who Are Attending Light Shows and Acquiring Pointers
By Geoff Giordano With plenty of summer left to enjoy, it is appropriate to remind revelers to be aware when attending outdoor laser demonstrations or using handheld laser pointers. More and more handheld laser pointers are being sold to consumers and tourists — especially online — and they often exceed the output power listed on the […]
Report of 11 laser strikes on jetliners over N.J. illustrates continued threat posed by misuse of green laser pointers
By Geoff Giordano As word came in from the Federal Aviation Administration that 11 jetliner crews reported being struck by green laser pointers over New Jersey — five of them near Newark Liberty International Airport — I was instantly reminded of some solutions to such potentially devastating acts that were discussed at our International Laser Safety Conference […]
Ultra-short Pulse Laser Processing of CFRP with Kilowatt Average Power
By: Christian Freitag1,2, Margit Wiedenmann1, Jan-Philipp Negel1, André Loescher1, Volkher Onuseit1, Rudolf Weber1, Marwan Abdou Ahmed1, Thomas Graf1 In order to process Carbon fiber reinforced plastics (CFRP) with a satisfying productivity, average laser powers >1 kW are necessary. Usually high average laser powers are achieved using continuous wave (cw) laser systems but the appearance of thermal damage ranging […]
Drilling of Cooling Holes by Using High-Power Ultrashort Pulsed Laser Radiation
By Hermann Uchtmann One of the main applications for laser drilling is the manufacturing of cooling holes with diameters of e.g., 500 µm in turbine components such as turbine blades and vanes or combustion chambers. Nowadays, these cooling holes are drilled by using flash lamp pumped Nd:YAG laser radiation and partially by using QCW fiber laser […]