4 citations · 5 across the 5 of their papers we have counts for
5 papers
Non-Hermitian zero mode laser in a nanophotonic trimer
Kaiwen Ji, Bruno Garbin, Melissa Hedir +2
Symmetry-protected zero modes in arrays of coupled optical elements have attracted considerable attention because they are expected to be robust against coupling disorders. In the…
Tracking exceptional points above laser threshold
Kaiwen Ji, Qi Zhong, Li Ge +5
Recent studies on non-Hermitian optical systems having exceptional points (EPs) have revealed a host of unique characteristics associated with these singularities, including unidir…
Anti-parity-time topologically undefined state
Haohao Wang, Kaiwen Ji, Yuandan Wang +6
We constructed an anti-parity-time-symmetric photonic lattice by using perturbations. The results show the topological state will appear when the waveguide coupling constants $κ_1<…
PT-symmetric topological near-zero interface state
Zhenjuan Liu, Kaiwen Ji, Haohao Wang +6
Photonic systems with parity-time (PT) symmetry and topology are attracting considerable attentions. In this work, topological near-zero edge states are studied in PT-symmetric pho…
Synthetic topological insulator with periodically modulated effective gauge fields
Zengrun Wen, Baole Lu, Kaiwen Ji +4
We study both theoretically and numerically the topological edge states in synthetic photonic lattice with finitely periodic gauge potentials. The effective gauge fields are implem…