Angular Optical Transparency Induced by Photonic Topological Transitions in Metamaterials Huo, Pengcheng ; Liang, Yuzhang ; Zhang, Si ; Lu, Yanqing ; Xu, Ting Abstract Publication: Laser & Photonics Reviews Pub Date: August 2018 DOI: 10.1002/lpor.201700309 Bibcode: 2018LPRv...1200309H