Forscher der Universität Regensburg konnten jetzt zeigen, dass die elektrische Lichterzeugung von OLEDs sehr stark von magnetischen Feldern abhängt. Damit lassen sich OLEDs als empfindliche Magnetsensoren einsetzen.
In life, we sort soiled laundry from clean; ripe fruit from rotten. Two Johns Hopkins engineers say they have found an easy way to use gravity or simple forces to similarly sort microscopic particles and bits of biological matter - including circulating tumor cells.
In experiments resembling an atomic-scale shooting gallery, researchers are pioneering a new method for chemical analysis by zapping the innermost electrons out of atoms with powerful X-ray laser pulses from SLAC's Linac Coherent Light Source (LCLS).
Once again, Würzburg physicists provide new insights into spintronics: In ultra-thin topological insulators, they have identified spin-polarized currents, which were first theoretically predicted six years ago. They also present a method of application for the development of new computers.
Laser beams can be made to form dark as well as bright intensity helices, or corkscrews of light. Researchers have now shown that forming dark helices can have considerable advantages over employing their commonly considered bright cousins.