A team of researchers led by Margaret Murnane and Henry Kapteyn at the University of Colorado developed a sharply focused, ultraviolet or extreme-ultraviolet (EUV) light source that can be used to measure and manipulate objects at the nano-scale. Size has been a major hurdle to developing, or even seeing, the tiny components because the objects can be smaller than the waves of light illuminating them. EUV light, which has a wavelength of only tens of nanometers, can pulse in shorter bursts than any other system currently available. To create this short-wavelength light, Kapteyn and associates use a laser at visible wavelengths, and then convert the light to much shorter wavelengths using high harmonic generation (HHG)–combining photons to generate much higher-energy photons with a correspondingly shorter wavelength. Kapteyn expects the light source to be used for developing and testing EUV lithography equipment. For more information, contact: Josh Chamot from the National Science Foundation at jchamot@ nsf.gov or phone, (703) 292-8070.
If a major catastrophe strikes your area, will you be prepared? Do you know how to modify the tech you've already got or MacGyver what you need to fit your own situation? A free, five-day Continuing Education Center course starting April 6 will show you how.
NanoSteel Co., which develops high-performance steel alloys, began producing steel powders for additive manufacturing (AM) last year and now supplies them commercially for freeform laser deposition and laser powder bed fusion processes.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.