Localization engineering by resonant driving in dissipative polariton arrays
Gonzalo Usaj
SciPost Phys. Core 7, 052 (2024) · published 9 August 2024
- doi: 10.21468/SciPostPhysCore.7.3.052
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Abstract
Arrays of microcavity polaritons are very versatile systems that allow for broad possibilities for the engineering of multi-orbital lattice geometries using different state preparation schemes. One of these schemes, spatially modulated resonant driving, can be used, for instance, to selectively localize the polariton field within the particular region of the lattice enclosed by the driving laser. Both the frequency and the spatial amplitude distribution (module and phase) of the driven laser field are important and serve as a knob to control the leakage outside that region and hence the extend of the spatial localization. Here, we analyse both the linear and nonlinear regimes using the lattice Green function formalism that is particularly suitable for the case of polariton arrays described in a tight-binding approximation. We identify the conditions for the laser induced localization to occur on arbitrary lattice's geometries and discuss some experimentally relevant cases. We find that the polariton-polariton interaction leads to a frequency shift of the optimal localization condition that could be used to further control it.
Author / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 3 Gonzalo Usaj
- 1 Université Libre de Bruxelles [ULB]
- 2 Consejo Nacional de Investigaciones Científicas y Técnicas / National Scientific and Technical Research Council [CONICET]
- 3 Universidad Nacional de Cuyo / National University of Cuyo
- Fondo para la Investigación Científica y Tecnológica
- Fonds De La Recherche Scientifique - FNRS (FNRS) (through Organization: Fonds National de la Recherche Scientifique [FNRS])
- Universidad Nacional de Cuyo