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Phys Rev Lett. 2008 Jul 4;101(1):016402. Epub 2008 Jul 1.

Optical circuits based on polariton neurons in semiconductor microcavities.

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School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom.


By exploiting the polarization multistability of polaritons, we show that polarized signals can be conducted in the plane of a semiconductor microcavity along controlled channels or "neurons." Furthermore, because of the interaction of polaritons with opposite spins it is possible to realize binary logic gates operating on the polarization degree of freedom. Multiple gates can be integrated together to form an optical circuit contained in a single semiconductor microcavity.

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