Driven Dipolariton Transistors in Y-shaped Channels

Authors

Patrick Serafin, CUNY New York City College of TechnologyFollow
Tim Byrnes, New York University
German Kolmakov V, CUNY New York City College of TechnologyFollow

Document Type

Article

Publication Date

12-4-2020

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 MoSe₂-WS₂ 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.

Comments

Preprint of Serafin, Patrick, Tim Byrnes, and German V. Kolmakov. "Driven dipolariton transistors in Y-shaped channels." Physics Letters A 384, no. 34 (2020): 126855. https://doi.org/10.1016/j.physleta.2020.126855