Room-temperature continuous-wave pumped exciton polariton condensation in a perovskite microcavity
Microcavity exciton polaritons (polaritons) as part-light part-matter quasiparticles garner considerable attention for Bose-Einstein condensation at elevated temperatures. Recently, halide perovskites have emerged as promising room-temperature polaritonic platforms because of their large exciton binding energies and superior optical properties. However, currently, inducing room-temperature nonequilibrium polariton condensation in perovskite microcavities requires optical pulsed excitations with high excitation densities. Here, we demonstrate continuous-wave optically pumped polariton condensation with an exceptionally low threshold of ~0.53 W cm<sup>-2</sup> and a narrow linewidth of ~0.5 meV. Polariton condensation is unambiguously demonstrated by characterizing the nonlinear behavior and coherence properties. We also unveil the trapping potential landscape strategy to facilitate polariton relaxation and accumulation. Our findings lay the foundation for the next-generation energy-efficient polaritonic devices operating at room temperature.
Authors
- Qihua Xiong (ORCID: https://orcid.org/0000-0002-2555-4363)
- Xinyi Deng (ORCID: https://orcid.org/0000-0002-9181-2236)
- Jiepeng Song (ORCID: https://orcid.org/0000-0002-7982-1826)
- Wenkai Yang
- Guichuan Xing (ORCID: https://orcid.org/0000-0003-2769-8659)
- Qing Zhao (ORCID: https://orcid.org/0000-0003-3374-6901)
- Kebin Shi (ORCID: https://orcid.org/0000-0002-7451-9265)
- Sanjib Ghosh (ORCID: https://orcid.org/0000-0002-5014-9466)
- Qiuyu Shang (ORCID: https://orcid.org/0000-0002-8807-7373)
- Qing Zhang (ORCID: https://orcid.org/0000-0002-6869-0381)
- Chun Li (ORCID: https://orcid.org/0000-0002-3132-3756)
- Xinfeng Liu (ORCID: https://orcid.org/0000-0002-7662-7171)
- Yubin Wang (ORCID: https://orcid.org/0000-0003-4454-7190)
- Xianjin Wang (ORCID: https://orcid.org/0009-0005-9328-7534)
- Peng Gao (ORCID: https://orcid.org/0000-0003-0860-5525)
- Xiaoyue Gao
Institutions
- Peking University (CN)
- University of Macau (MO)
- National Center for Nanoscience and Technology (CN)
- Beijing Academy of Quantum Information Sciences (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Science Advances
- Published
- 2025-01-29
- DOI
- https://doi.org/10.1126/sciadv.adr1652
- Citations
- 31
- Primary Topic
- Strong Light-Matter Interactions
- Type
- article
- Field-Weighted Citation Impact
- 38.65