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Konventionelle und neue Teraherz-Quellen im Vergleich

New Light in Terahertz Window

Jülich, 23rd June 2015 – The terahertz range is one of the last sections of the electromagnetic spectrum that is still rarely used in everyday life. The radiation is difficult to generate and until now this was only possible to a limited extent. Yet it has the potential for numerous applications. In Physical Review Letters, scientists at Jülich together with their international partners present a new concept that uses short-pulse lasers to expand the capabilities of terahertz sources currently being developed. More: New Light in Terahertz Window …

Neutron und Proton auf der Wage

Theory of the Strong Interaction Verified

Jülich, 27. März 2015 – The fact that the neutron is slightly more massive than the proton is the reason why atomic nuclei have exactly those properties that make our world and ultimately our existence possible. Eighty years after the discovery of the neutron, a team of physicists from France, Germany, and Hungary headed by Zoltán Fodor, a researcher from Wuppertal, has finally calculated the tiny neutron-proton mass difference. The findings are considered a milestone by many physicists and confirm the theory of the strong interaction. More: Theory of the Strong Interaction Verified …