Work

Exciton–polariton condensation in MAPbI 3 films from bound states in the continuum metasurfaces

Year: 2025

Type: article

Abstract: Exciton-polariton condensation in optical resonators is a fascinating pathway to realise ultra-coherent states of light, underpinned by Bose-Einstein quasiparticles. Bearing inherently non-radiative nature, bound states in continuum (BIC) have proven to be an excellent platform to achieve polariton condensation. Here, we report exciton-polariton condensation in a solution-processed perovskite thin film hybridized with a silicon BIC metasurface. Thanks to the high quality factor of the BIC, the polariton condensation exhibits low fluence threshold, narrow linewidth, and large spatial and temporal coherence. These results demonstrate the feasibility of integration of perovskite polaritonic devices in scalable silicon photonic platforms.

Source: Nanophotonics

DOI: 10.1515/nanoph-2025-0128

Authors: Marco Marangi, Andrea Zacheo, Alexander M. Dubrovkin, Giorgio Adamo, Cesare Soci

Institutions: Nanyang Technological University, Centre for Disruptive Photonic Technologies, The Photonics Institute

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,995

Funders: National Research Foundation, Ministry of Education - Singapore, Ministry of Education, India