Micro- and Nanotechnology
Built-in Germanium Lasers could make Computer Chips faster
Paul Scherrer Institute (PSI) researchers have investigated the mechanisms necessary for enabling the semiconductor Germanium to emit laser light. As a laser material, Germanium together with Silicon could form the basis for innovative computer chips in which information would be transferred partially in the form of light. This technology would revolutionise data streaming within chips and give a boost to the performance of electronics.
Ultra-short X-ray laser pulses precisely surveyed for the first time
X-ray lasers are modern light sources from which scientists expect to obtain new knowledge about the structure and function of materials at the atomic level. The scientific value of an X-ray laser stands or falls on the quality of the ultra-short X-ray pulses it produces and which researchers use to illuminate their samples. An international team led by scientists from the Paul Scherer Institute, PSI, has now precisely measured these pulses
Diamanten sind auch des Forschers bester Freund
Einem vom PSI geleiteten Forscherteam ist es gelungen, harte Röntgenlaserstrahlung 100'000-fach zu konzentrieren und so an einem Punkt Röntgenstrahlung zu erzeugen, die so intensiv war wie wohl nirgends zuvor. Als Linsen verwendeten die Forscher winzige Ringstrukturen aus Diamant à dem Material, das am besten dem Röntgenlaserlicht standhält. Diese Entwicklung schafft die Voraussetzung für einen Teil der Experimente am SwissFEL, dem geplanten Röntgenlaser des PSI.This news release is only available in German.
Moving Monopoles Caught on Camera
For decades researchers have searched for magnetic monopoles à isolated magnetic charges that can move freely like electric charges. Now a team of researchers from the Paul Scherrer Institute and University College Dublin have been able to produce monopoles in the form of quasiparticles in an assembly of nanoscale magnets and have directly observed how they move.
A possible new career for a vital biomolecule
As a component of the haemoglobin molecule, porphyrin enables the transport of oxygen within the human body. In a slightly altered form, it may find also applications in technical devices. Researchers at the Paul Scherrer Institute and the University of Basel have shown that a magnetic property of the molecule can be switched on and off by means of a simple chemical procedure, so that the molecule can be used as a tiny molecular switch.
Controlling the electronic surface properties of a material
Forschenden ist es erstmals gelungen, dünne Schichten mit steuerbaren elektronischen Eigenschaften herzustellen. Diese Entdeckung könnte für zukünftige Anwendungen in der Sensorik und der Computertechnologie von grosser Bedeutung sein. Die Arbeiten wurden im Wissenschaftsmagazin Science veröffentlicht.This news release is only available in German.
Super-Resolution X-ray Microscopy unveils the buried secrets of the nanoworld
Show Full VersionPublication in Science. A novel super-resolution X-ray microscope developed by a team of researchers from the Paul Scherrer Institut (PSI) and EPFL in Switzerland combines the high penetration power of x-rays with high spatial resolution, making it possible for the first time to shed light on the detailed interior composition of semiconductor devices and cellular structures.