499 citations · 1.4k across the 12 of their papers we have counts for
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Observing half and integer polarization vortices at band degeneracies
Ang Chen, Wenzhe Liu, Yiwen Zhang +6
Far-field polarization vortices were recently found on singlet bands in the momentum-space of two-dimensional photonic lattices, also known as the dark states and bound states in c…
Gate tunable third-order nonlinear optical response of massless Dirac fermions in graphene
Tao Jiang, Di Huang, Jinluo Cheng +13
Materials with massless Dirac fermions can possess exceptionally strong and widely tunable optical nonlinearities. Experiments on graphene monolayer have indeed found very large th…
Observation of optical vortices in momentum space
Yiwen Zhang, Ang Chen, Wenzhe Liu +6
Vortex, the winding of a vector field in two dimensions, has its core the field singularity and its topological charge defined by the quantized winding angle of the vector field. V…
Electromagnetic Scattering Laws in Weyl Systems
Ming Zhou, Lei Ying, Ling Lu +3
Wavelength determines the length scale of the cross section when electromagnetic waves are scattered by an electrically small object. The cross section diverges for resonant scatte…