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Strong coupling of hybrid states of light and matter in cavity-coupled quantum dot solids.

ABSTRACT: The formation of plasmon-exciton (plexciton) polariton is a direct consequence of strong light-matter interaction, and it happens in a semiconductor-metal hybrid system. Here the formation of plasmon-exciton polaritons was observed from an AgTe/CdTe Quantum Dot (QD) solid system in the strong coupling regime. The strong coupling was achieved by increasing the oscillator strength of the excitons by forming coupled QD solids. The anti-crossing-like behaviour indicates the strong coupling between plasmonic and excitons state in AgTe/CdTe QD solids, resulting in a maximum Rabi splitting value of 225 meV at room temperature. The formation of this hybrid state of matter and its dynamics were studied through absorption, photoluminescence, and femtosecond transient studies.

SUBMITTER: Sangeetha A

PROVIDER: S-EPMC10551025 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature

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Strong coupling of hybrid states of light and matter in cavity-coupled quantum dot solids.

Sangeetha Arumugam A Reivanth Kanagaraj K Thrupthika Thankappan T Ramya Subramaniam S Nataraj Devaraj D

Scientific reports 20231004 1

The formation of plasmon-exciton (plexciton) polariton is a direct consequence of strong light-matter interaction, and it happens in a semiconductor-metal hybrid system. Here the formation of plasmon-exciton polaritons was observed from an AgTe/CdTe Quantum Dot (QD) solid system in the strong coupling regime. The strong coupling was achieved by increasing the oscillator strength of the excitons by forming coupled QD solids. The anti-crossing-like behaviour indicates the strong coupling between p ...[more]

PMID: 37794042

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