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Chiral plasmon in gapped Dirac systems
Anshuman Kumar, Andrei Nemilentsau, Kin Hung Fung +3
We study the electromagnetic response and surface electromagnetic modes in a generic gapped Dirac material under pumping with circularly polarized light. The valley imbalance due t…
Formation of Non-reciprocal Bands in Magnetized Diatomic Plasmonic Chains
C. W. Ling, Jin Wang, Kin Hung Fung
We show that non-reciprocal bands can be formed in a magnetized periodic chain of spherical plasmonic particles with two particles per unit cell. Simplified form of symmetry operat…
Tunable light-matter interaction and the role of hyperbolicity in graphene-hBN system
Anshuman Kumar, Tony Low, Kin Hung Fung +2
Hexagonal boron nitride (hBN) is a natural hyperbolic material which can also accommodate highly dispersive surface phonon-polariton modes. In this paper, we examine theoretically…