Jülich, 24. May 2016 – Terahertz waves can be used for numerous applications, such as body scanners for instance, but until now generating them has been difficult and fraught with limitations. Scientists from Jülich, together with international partners, have implemented a novel concept for the production of this electromagnetic radiation. An emitter in the form of a thin metal layer is able to generate the full terahertz spectrum by the clever exploitation of the spin properties of electrons. On the basis of this principle, efficient sources can be built which for the first time are able to emit radiation seamlessly over a wide bandwidth from 1 – 30 THz. Moreover, the new emitter is more compact in design and can be produced more cost-effectively than before. (Nature Photonics, DOI: 10.1038/nphoton.2016.91).
T. Seifert et al.;
Nature Photonics, DOI: 10.1038/nphoton.2016.91