Abstract
Abstract We theoretically study the propagation and interference of plasmon polaritons in soliton superlattices in minimally twisted bilayer graphene with arbitrary soliton angle, which characterizes the local strain direction. We show that the band structures and local optical conductivity across the soliton evolve systematically with soliton angle, providing an important and tunable degree of freedom for tuning polariton-soliton interactions. Consequently, the plasmon polariton interference profile near single solitons can be significantly and continuously modulated through the soliton angle. Furthermore, our simulation reveals that the polariton interference profile can be designed and manipulated by changing the soliton angle profiles. Our study demonstrates that the modulating soliton angle profile in minimally twisted bilayer graphene provides a valuable pathway to controlling polaritons for nanophotonic applications.
Published Version
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