In a new paper with the group of Yun-Feng Xiao published today in Nature Communications we show how the non-linearity in a symmetric microcavity leads to the formation of lasing modes with a pronounced chirality that we can control dynamically and all-optically by the bias in the pump direction.
![microcavity](https://rottergroup.itp.tuwien.ac.at/wp-content/uploads/2020/02/microcavity.png)