Optical control of exciton fluxes is realized for indirect excitons in a crossed-ramp excitonic device. The device demonstrates experimental proof of principle for all-optical excitonic transistors with a high ratio between the excitonic signal at the optical drain and the excitonic signal due to the optical gate. The device also demonstrates experimental proof of principle for all-optical excitonic routers.
@article{arxiv.1310.7842,
title = {Optically Controlled Excitonic Transistor},
author = {P. Andreakou and S. V. Poltavtsev and J. R. Leonard and E. V. Calman and M. Remeika and Y. Y. Kuznetsova and L. V. Butov and J. Wilkes and M. Hanson and A. C. Gossard},
journal= {arXiv preprint arXiv:1310.7842},
year = {2014}
}