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

Arumugam Sangeetha, Kanagaraj Reivanth, Thankappan Thrupthika, Subramaniam Ramya, Devaraj Nataraj

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Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Arumugam SangeethaQuantum Materials & Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.

Kanagaraj ReivanthQuantum Materials & Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.

Thankappan ThrupthikaQuantum Materials & Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.

Subramaniam RamyaQuantum Materials & Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.

Devaraj NatarajQuantum Materials & Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India. de.nataraj@buc.edu.in.

Funding

Department of Science and Technology, Ministry of Science and Technology, India DST/TM/SERI/ FR/232/GUniversity Grants Commission 2-8/2016(NS/PE)

6 · The paper itself

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.

Identifiers

PMID37794042

DOI10.1038/s41598-023-42105-1

PMCPMC10551025

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