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Theoretical study on optical properties of liquid crystalline Skyrmion lattice

A chiral liquid crystal sandwiched by two parallel plates has been shown to exhibit various exotic structures including a hexagonal lattice of Skyrmion excitations. Here we focus on the optical properties of a hexagonal Skyrmion lattice and present our theoretical studies based on direct numerical solving of Maxwell equations for light waves. Specifically, we discuss Kossel diagrams and optical microscope images of a hexagonal Skyrmion lattice and other structures resembling a thin slice of a bulk blue phase structure.