6 papers · 1 filter
Fabry-Pérot Metacavities with Single-Layered Dielectric Metamirrors
Zhichun Qi, Chunchao Wen, Wei Wang +3
The Fabry-Pérot resonator is a cornerstone of photonics and wave physics, providing a universal mechanism for spectral confinement and resonant enhancement of wave-matter interacti…
Topological Optical Achirality
C. Wen, Z. Qi, J. Zhang +4
For arbitrary reciprocal single-mode structures, regardless of their geometric shapes or constituent materials, there must exist incident directions of plane waves for which they a…
Polarization-Independent Zero Directional Scattering Without Geometric Symmetries
Chunchao Wen, Zhichun Qi, Jianfa Zhang +3
As the characteristic feature of generalized Kerker effect in Mie theory, directional scattering elimination has been playing a pivotal role in nanophotonics and many other photoni…
Polarizations Underdescribe Vectorial Electromagnetic Waves
Chunchao Wen, Jianfa Zhang, Chaofan Zhang +3
Electromagnetic waves are described by not only polarization ellipses but also cyclically rotating vectors tracing out them. The corresponding fields are respectively directionless…
Magneto-chiral backscatterings by rotationally symmetric nonreciprocal structures
Chunchao Wen, Jianfa Zhang, Shiqiao Qin +2
It was proved that the joint operation of electromagnetic reciprocity and -fold () rotational symmetry would secure arbitrary polarization-independent backscattering eff…
Momentum-space Scattering Extremizations
Chunchao Wen, Jianfa Zhang, Shiqiao Qin +2
Studies into scatterings of photonic structures have been so far overwhelmingly focused on their dependencies on the spatial and spectral morphologies of the incident waves. In con…