Scientists from the University of Warsaw, the Military University of Technology and the University of Southampton presented a new type of tunable microlaser emitting two beams. "These beams are polarized circularly and directed at different angles," says prof. Jacek Szczytko from the Faculty of Physics of the University of Warsaw. This achievement was obtained by creating the so-called persistent-spin helix on the surface of the microcavity. The results have been published in Physical Review Applied.