National Taiwan University

Photonic topological phases in dispersive metamaterials

Professor Ruey-Lin, National Taiwan University

Apr 1, 15:00 - 16:00

B1 L4 R4214

National Taiwan University photonics

We analyze the photonic topological phases in dispersive metamaterials which satisfy the degenerate condition at a reference frequency, where the hybrid modes are decoupled and determined by two subsystems with degenerate eigenvalues. By introducing the pseudospin states as the eigenfield basis, the Hamiltonians of the hybrid modes represent the pesudospin-orbit interaction with spin 1, which result in nonzero spin Chern numbers that characterize the topological phases.