Cavity‐Enhanced Superfluorescence Stimulates Coherent Energy Transfer in a Perovskite Quantum Dot Superlattice

The exploration of cooperative states in many‐body systems is a key research area. It focuses on superfluorescence (SF), a phenomenon linked with radiative dipole coupling, and its intersection with classical lasing effects. This produces a unique lasing‐field‐hybrid cooperative dipole (LCD) state t...

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Bibliographic Details
Published in:Laser & photonics reviews 2024-12, Vol.18 (12), p.n/a
Main Authors: Hu, Yongsheng, Mao, Danqun, Chen, Linqi, Guan, Yuanjun, Zhang, Long, Dong, Hongxing, Xu, Hongxing, Xie, Wei, Sun, Zheng
Format: Article
Language:English
Subjects:
cavity‐enhanced superfluorescence
Controllability
Cooperative control
Dipole interactions
Energy transfer
Excitons
Lasing
lasing‐field‐hybrid cooperative dipoles
Optoelectronic devices
Perovskites
Quantum dots
Quantum phenomena
stimulated energy transfer
Superfluorescence
Superlattices
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Summary:The exploration of cooperative states in many‐body systems is a key research area. It focuses on superfluorescence (SF), a phenomenon linked with radiative dipole coupling, and its intersection with classical lasing effects. This produces a unique lasing‐field‐hybrid cooperative dipole (LCD) state through optical cavity‐enhanced superfluorescence (CESF). A coherent energy transfer is demonstrated between two such states within a perovskite quantum dot (QD) superlattice. This results in competitive luminescence timing dynamics. The findings reveal that stimulated energy transfer occurs when two cooperative cavity‐exciton states coexist, controllable via a dual‐pulse pump technique. This understanding is vital for advancing quantum phenomena knowledge and enhancing optoelectronic devices. The energy transfer in a perovskite QD superlattice. The superfluorescence triggers energy transfer between LCD states, causing competitive luminescence dynamics. This is significant as it shows that stimulated energy transfer occurs when cooperative exciton states coexist in an optical cavity, which can be interpreted as stimulated Raman scattering.
ISSN:1863-8880
1863-8899
DOI:10.1002/lpor.202400650