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The FLAME-slab method for electromagnetic wave scattering in aperiodic slabs
Shampy Mansha, Igor Tsukerman, Y. D. Chong
The proposed numerical method, "FLAME-slab," solves electromagnetic wave scattering problems for aperiodic slab structures by exploiting short-range regularities in these structure…
Coherent perfect absorbers: linear control of light with light
Denis G. Baranov, Alex Krasnok, Timur Shegai +2
Absorption of electromagnetic energy by a material is a phenomenon that underlies many applied problems, including molecular sensing, photocurrent generation and photodetection. Co…
Optical isolation with nonlinear topological photonics
Xin Zhou, You Wang, Daniel Leykam +1
It is shown that the concept of topological phase transitions can be used to design nonlinear photonic structures exhibiting power thresholds and discontinuities in their transmitt…
Flat bands in lattices with non-Hermitian coupling
Daniel Leykam, Sergej Flach, Y. D. Chong
We study non-Hermitian photonic lattices that exhibit competition between conservative and non-Hermitian (gain/loss) couplings. A bipartite sublattice symmetry enforces the existen…
Exceptional Points in a Non-Hermitian Topological Pump
Wenchao Hu, Hailong Wang, Perry Ping Shum +1
We investigate the effects of non-Hermiticity on topological pumping, and uncover a connection between a topological edge invariant based on topological pumping and the winding num…