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The authors combine acousto-optoelectric and multi-channel photon correlationspectroscopy to probe spatio-temporal carrier dynamics induced by apiezoelectric surface acoustic wave (SAW). The technique is implemented bycombining phase-locked optical micro-photoluminescence spectroscopy andsimultaneous three-channel time resolved detection. From the recorded timecorrelated single photon counting data the time transients of individualchannels and the second and third order correlation functions are obtained withsub-nanosecond resolution. The method is validated by probing the correlationsSAW-driven carrier dynamics between three decay channels of a single polytypicsemiconductor nanowire on a conventional LiNbO$_\mathrm{3}$ SAW delay linechip. The method can be readily applied to other types of nanosystems and probeSAW-regulated charge state preparation in quantum dots, charge transferprocesses in van der Waals heterostructures or other types of hybridnanoarchitectures.

High-dimensional acousto-optoelectric correlation spectroscopy reveals coupled carrier dynamics in polytypic nanowires