Propagative oscillations in co-directional polariton waveguide couplers
| Autor: | Oleg A. Egorov, Sven Höfling, Ivan A. Shelykh, Christian Schneider, Marta Martín, Tristan H. Harder, Martin Klaas, Monika Emmerling, Luis Viña, E. Rozas, Johannes Beierlein, Ulf Peschel, Alexey V. Yulin, H. Suchomel, Sebastian Klembt |
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| Přispěvatelé: | EPSRC, University of St Andrews. School of Physics and Astronomy, UAM. Departamento de Física de Materiales, UAM. Departamento de Física Teórica de la Materia Condensada |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
NDAS
Phase (waves) Polaritons General Physics and Astronomy FOS: Physical sciences Physics::Optics Port (circuit theory) 01 natural sciences law.invention law 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Polariton 010306 general physics Wave function QC MCC Physics Coupling Condensed Matter::Quantum Gases Condensed Matter - Mesoscale and Nanoscale Physics Oscillation business.industry Condensed Matter::Other Física Microcavities QC Physics Optoelectronics Excitons Routing (electronic design automation) business Waveguide |
| Zdroj: | Biblos-e Archivo. Repositorio Institucional de la UAM instname |
| Popis: | We report on novel exciton-polariton routing devices created to study and purposely guide light-matter particles in their condensate phase. In a co-directional coupling device, two waveguides are connected by a partially etched section which facilitates tunable coupling of the adjacent channels. This evanescent coupling of the two macroscopic wavefunctions in each waveguide reveals itself in real space oscillations of the condensate. This Josephson-like oscillation has only been observed in coupled polariton traps so far. Here, we report on a similar coupling behavior in a controllable, propagative waveguide-based design. By controlling the gap width, channel length or the propagation energy, the exit port of the polariton flow can be chosen. This co-directional polariton device is a passive and scalable coupler element that can serve in compact, next generation logic architectures. 6 pages, 5 figures |
| Databáze: | OpenAIRE |
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