321 citations · 719 across the 9 of their papers we have counts for
7 papers · 1 filter
Non-Abelian lattice gauge fields in the photonic synthetic frequency dimension
Dali Cheng, Kai Wang, Charles Roques-Carmes +4
Non-Abelian gauge fields provide a conceptual framework for the description of particles having spins. The theoretical importance of non-Abelian gauge fields motivates their experi…
Robust Classical and Quantum Polarimetry with a Single Nanostructured Metagrating
Shaun Lung, Kai Wang, Nicolas R. H. Pedersen +2
We formulate a new conceptual approach for one-shot complete polarization state measurement with nanostructured metasurfaces applicable to classical light and multi-photon quantum…
Multi-dimensional band structure spectroscopy in the synthetic frequency dimension
Dali Cheng, Eran Lustig, Kai Wang +1
The concept of synthetic dimensions in photonics provides a versatile platform in exploring multi-dimensional physics. Many of these physics are characterized by band structures in…
Time reflection and refraction in synthetic frequency dimension
Olivia Y. Long, Kai Wang, Avik Dutt +1
The duality of space and time in Maxwell's equations has prompted interest in time boundaries and the accompanying temporal analog of spatial reflection and refraction. However, ac…
Artificial non-Abelian lattice gauge fields for photons in the synthetic frequency dimension
Dali Cheng, Kai Wang, Shanhui Fan
Non-Abelian gauge fields give rise to nontrivial topological physics. Here we develop a scheme to create an arbitrary SU(2) lattice gauge field for photons in the synthetic frequen…
Eigenvalue topology of non-Hermitian band structures in two and three dimensions
Charles C. Wojcik, Kai Wang, Avik Dutt +2
In the band theory for non-Hermitian systems, the energy eigenvalues, which are complex, can exhibit non-trivial topology which is not present in Hermitian systems. In one dimensio…
Observation of arbitrary topological windings of a non-Hermitian band
Kai Wang, Avik Dutt, Ki Youl Yang +3
The non-trivial topological features in the energy band of non-Hermitian systems provide promising pathways to achieve robust physical behaviors in classical or quantum open system…