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Theoretical analysis of glide-Z_2 magnetic topological photonic crystals
Heejae Kim, Hengbin Cheng, Ling Lu +1
Gapped systems with glide symmetry can be characterized by a Z_2 topological invariant. We study the magnetic photonic crystal with a gap between the second and third lowest bands,…
Dirac-vortex topological photonic crystal fibre
Hao Lin, Ling Lu
The success of photonic crystal fibres relies largely on the endless variety of two-dimensional photonic crystals in the cross-section. Here, we propose a topological bandgap fibre…
Dirac-vortex topological cavity
Xiaomei Gao, Lechen Yang, Hao Lin +5
Cavity design is crucial for single-mode semiconductor lasers such as the distributed feedback (DFB) and vertical-cavity surface-emitting lasers (VCSEL). By recognizing that both o…
Space-group theory of photonic bands
Haruki Watanabe, Ling Lu
The wide-range application of photonic crystals and metamaterials benefits from the enormous design space of three-dimensional sub-wavelength structures. In this work, we study the…