Lin, H.-I.H.-I.LinYANG-FANG CHEN et al.2019-12-272019-12-272016https://scholars.lib.ntu.edu.tw/handle/123456789/443008We use hyperbolic metamaterials to strongly enhance random laser action and reduce lasing threshold. The excited high-k modes can increase the possibility of forming closed loop paths and decrease the energy consumption of photon propagation. © OSA 2017.[SDGs]SDG7Energy utilization; High energy forming; Metamaterials; Closed loops; High- k; Lasing threshold; Photon propagation; Random lasers; Laser beamsconference paper10.1364/LS.2017.LTh2F.22-s2.0-85035123382https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035123382&doi=10.1364%2fLS.2017.LTh2F.2&partnerID=40&md5=b41c54129d07e6f56fa25d7dc621e5a6