We propose the scheme of a novel spin-optronic device, optical analog of Datta and Das spin transistor for the electrons. The role of the ferromagnetic-nonmagnetic contact is played by a spatially confined cavity polariton BEC. The condensate is responsible for the appearance of effective magnetic field which rotates the spin state of a propagating pulse of polaritons allowing to tune the transmittivity of the device.
@article{arxiv.0911.1621,
title = {Polaritonic analogue of Datta and Das spin transistor},
author = {R. Johne and I. A. Shelykh and D. D. Solnyshkov and G. Malpuech},
journal= {arXiv preprint arXiv:0911.1621},
year = {2010}
}