Theory of biexciton-polaritons in transition metal dichalcogenide monolayers
arxiv(2024)
摘要
We theoretically investigate a nonlinear optical response of a planar
microcavity with an embedded transition metal dicalcogenide monolayer of a when
an energy of a biexcitonic transition is brought in resonance with an energy of
a cavity mode. We demonstrate that the emission spectrum of this system
strongly depends on an external pump. For small and moderate pumps we reveal
the presence of a doublet in the emission with the corresponding Rabi splitting
scaling as a square root of the number of the excitations in the system.
Further increase of the pump leads to the reshaping of the spectrum, which
demonstrates the pattern typical for a Mollow triplet. An intermediate pumping
regime shows a broad irregular spectrum reminiscent of a chaotic dynamics of
the system.
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