in Fig. \[Fig2\](a)). We have previously shown that the moving piezoelectric dots can efficiently transport uncorrelated electron-hole pairs between orthogonal piezoelectric SAWs [@Ref26]. A similar concept using a moving array of strain dots is applied here to transfer IXs between two non-piezoelectric SAWs. The moving dot array is created by the interference of the two SAW beams. As seen in Fig. \[Fig2\](b), the dots propagate with a velocity $\sqrt{2}{v_\mathrm{SAW}}$ (${v_\mathrm{SAW}}$ denotes the SAW phase velocity) in channels forming an angle of 45$^\circ$ with respect to the propagation directions of the two interfering SAWs [@Ref26]. Due to their oblique propagation direction, the dots can capture the IXs from the input beam and transfer them to the other beam, as illustrated in the time averaged PL simulation of Fig. \[Fig2\](c). The oblique lines show the propagation path of moving dots: a detailed numerical analysis of the transfer process including videos is presented in the SM.

The multiplexing action is illustrated by the PL images of Fig. \[Fig3\]. Figure \[Fig3\](a) shows the direct transfer of IXs by SAW$_1$ from I/O$_1$ to I/O$_4$, which terminates close to the gate of EXAT$_4$ (kept in the OFF state). The transfer of IXs from SAW$_1$ to either 