Synthetic neuronal circuits: Optically active semiconductor microtubes as remotely accessible sensors for action potentials

In this work an advanced method of optical readout of action-potentials using optically active semiconductor microtubes (MTs) as resonators and potential tool for optogenetic circuits and 3D environment is presented. The microtubes are fabricated using a well-established method of lattice mismatched layers. GaAs quantum wells (QW) embedded in the multilayers act as optically active sensors for action potentials.