Zirkular polarisiertes Licht erzeugen

Aufbauten für die ultraschnelle Laserspektroskopie neuartiger Halbleiter. A research team under the direction of Felix Deschler at Heidelberg University's Institute for Physical Chemistry has developed a semiconductor that efficiently generates light and simultaneously gives that light a certain spin. According to the researchers, the so-called chiral perovskite material has great technological potential that can be used for applications in optoelectronics, telecommunications, and information processing. Generating bright, circularly polarised light has long been a goal of materials science. It is considered exceedingly difficult to achieve a distinct chirality - which describes the rotation of light in a specific direction - as well as high photoluminescence quantum efficiency (PLQE). The PLQE value expresses the ability of a material to emit light. Inorganic semiconductors are able to emit high brightness but usually exhibit low light polarisation.