We investigate active spatial control of polariton condensates independently of the polariton-, gain-inducing excitation profile. This is achieved by introducing an extra intracavity semiconductor layer, non-resonant to the cavity mode. Saturation of the optical absorption in the uncoupled layer enables the ultra-fast modulation of the effective refractive index and, through excited-state absorption, the polariton dissipation. Utilising these mechanisms, we demonstrate control over the spatial profile and density of a polariton condensate at room temperature.
@article{arxiv.2304.03617,
title = {Shaping potential landscape for organic polariton condensates in double-dye cavities},
author = {Anton D. Putintsev and Kirsty E. McGhee and Denis Sannikov and Anton V. Zasedatelev and Julian D. Töpfer and Till Jessewitsch and Ullrich Scherf and David G. Lidzey and Pavlos G. Lagoudakis},
journal= {arXiv preprint arXiv:2304.03617},
year = {2023}
}