Graphene-induced lasing mode tailoring in GaN floating microring cavityGangYi Zhu, FeiFei Qin, Ru Wang, XiaoXuan Wang, JunFeng Lu, Ying Yang, ChunXiang Xu and YongJin WangEPL, 136 4 (2021) 44001DOI: https://doi.org/10.1209/0295-5075/ac2456