Driven Dipolariton Transistors in Y-shaped Channels

Patrick Serafin; Tim Byrnes; German Kolmakov

doi:10.1016/j.physleta.2020.126855

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arXiv · 2009.00824

Driven Dipolariton Transistors in Y-shaped Channels

Patrick Serafin·Tim Byrnes·German Kolmakov

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Abstract

Exciton-dipolaritons are investigated as a platform for realizing working elements of a polaritronic transistor. Exciton-dipolaritons are three-way superposition of cavity photons, direct and indirect excitons in a bilayer semiconducting system embedded in an optical microcavity. Using the forced diffusion equation for dipolaritons, we study the room-temperature dynamics of dipolaritons in a transition metal dichalcogenide (TMD) heterogeneous bilayer. Specifically, we considered a MoSe$_2$-WS$_2$ heterostructure, where a Y-shaped channel guiding the dipolariton propagation is produced. We demonstrate that polaritronic signals can be redistributed in the channels by applying a driving voltage in an optimal direction. Our findings open a route towards the design of an efficient room-temperature dipolariton-based optical transistor.

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Patrick Serafin, Tim Byrnes, German Kolmakov. 2020-09-02. Driven Dipolariton Transistors in Y-shaped Channels. https://doi.org/10.1016/j.physleta.2020.126855

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