Science Daily  July 9, 2019 According to a 2006 prediction it should be possible to use graphene in a magnetic field not only to absorb terahertz and infrared light on demand but also to control the direction of the circular polarization. An international team of researchers (Switzerland, UK) built a special experimental setup to concentrate the infrared and terahertz radiation on small samples of pure graphene in the magnetic field and the result of the experiment confirmed the theory from 2006. They found that if electrically charged carriers are introduced, either positive or negative, it is possible to choose which […]