Excitons in monolayer transition metal dichalcogenides ($1L\text{−}\mathrm{TMDs}$) exhibit a Rydberg-like series of bound states, including optically dark levels. Using a three-pulse scheme, we directly track the dynamics of the $2p$ dark exciton in $1L\text{−}{\mathrm{WS}}_2$ through the Autler-Townes splitting of the bright $1s$ state. The splitting, induced by a midinfrared field resonant with the $1s\text{−}2p$ transition, reveals distinct $1s$ and $2p$ responses to photoexcitation. This approach provides new insight into many-body effects and offers a versatile experimental framework to probe driven excitonic dynamics in quantum materials.

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• Open quantum systems & decoherence
• Transition metal dichalcogenides
• Semiclassical methods
• Ultrafast femtosecond pump probe