Tamm-Plasmon Exciton-Polaritons in Single-Monolayered CsPbBr3 Quantum Dots at Room Temperature

Meng Cheng Yen, Chia Jung Lee, Yung Chi Yao, Yuan Ling Chen, Sheng Chan Wu, Hsu Cheng Hsu, Yuto Kajino, Gong Ru Lin*, Kaoru Tamada*, Ya Ju Lee*


研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)


Constructing polaritonic devices in monolithic, ultra-compact photonic architectures with monolayer-featured exciton-emitters is decisive to exploit the coherent superposition between entangled photonic and excitonic eigenstates for potential realizations of optical nonlinearities, macroscopic condensations, and superfluidity. Here, a feasible strategy for exciton-polariton formations is demonstrated by implementing a Tamm-plasmon (TP) polaritonic device with the active material composed of single-monolayered perovskite (CsPbBr3) quantum dots (QDs). The metallic character of the TP configuration is able to concentrate its resonance mode into a confined region beyond the diffraction limit, which highly overlaps, both spatially and spectrally, with the single-monolayered CsPbBr3 QDs embedded inside. The mode volume of the device is hence reduced dramatically, leading to an enhanced light–matter coupling strength for the polaritonic emission at room temperature. In particular, it is found that the dispersion relation of the TP polaritonic device is tunable by detuning the excitonic and photonic eigenmodes and that the polariton–polariton interaction energy is strongly dependent on the polariton's spin state. The presented strategy is a determinant step toward the realization of strong light–matter coupling and polariton spintronics in the CsPbBr3 QDs with a single-monolayered feature.

期刊Advanced Optical Materials
出版狀態已發佈 - 2023 2月 17

ASJC Scopus subject areas

  • 電子、光磁材料
  • 原子與分子物理與光學


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