Control of the oscillation frequency of a vortex cluster in the trapped polariton condensate

An optically trapped exciton–polariton condensate forms states corresponding to excited energy levels of the confining potential. Recently, it was shown that non-uniformity of the ring-shaped trapping potential leads to the simultaneous occupation of two split energy levels. This results in the form...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2024-05, Vol.124 (20)
Main Authors: Sitnik, Kirill A., Gnusov, Ivan, Misko, Mikhail, Töpfer, Julian D., Alyatkin, Sergey, Lagoudakis, Pavlos G.
Format: Article
Language:English
Subjects:
Clusters
Condensates
Controllability
Ellipticity
Energy levels
Excitons
Harmonic oscillators
Nonuniformity
Optical properties
Polaritons
Schrodinger equation
Topology
Vorticity
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An optically trapped exciton–polariton condensate forms states corresponding to excited energy levels of the confining potential. Recently, it was shown that non-uniformity of the ring-shaped trapping potential leads to the simultaneous occupation of two split energy levels. This results in the formation of an oscillating vortex cluster with periodically changing signs of topological charges. Here, we experimentally demonstrate the control of the topological charge oscillation frequency by tuning the ellipticity of the excitation profile. Our observations are corroborated using the linear Schrödinger equation for a two-dimensional quantum harmonic oscillator. Our findings open a promising avenue for the investigation of optical vorticity properties and their applications in controllable settings.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0199548