Observation of ultrastrong-coupling regime in the Fabry–Pérot microcavities made of metal mirrors containing Lemke dye

We investigate the transmission properties of Fabry–Pérot microcavities made of metal mirrors containing the organic dye molecule, generally called Lemke. We synthesized Lemke dye and fabricated the microcavities by using simple vacuum evaporation and spin-coating methods. The vacuum Rabi splitting...

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Bibliographic Details
Published in:Applied physics letters 2019-05, Vol.114 (19)
Main Authors: Suzuki, Makoto, Nishiyama, Kouichi, Kani, Nobutaka, Yu, Xinping, Uzumi, Keiji, Funahashi, Masahiro, Shimokawa, Fusao, Nakanishi, Shunsuke, Tsurumachi, Noriaki
Format: Article
Language:English
Subjects:
Absorptivity
Applied physics
Chemical synthesis
Coupling
Dyes
Metal mirrors
Microcavities
Quantum theory
Spin coating
Splitting
Vacuum evaporation
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Summary:We investigate the transmission properties of Fabry–Pérot microcavities made of metal mirrors containing the organic dye molecule, generally called Lemke. We synthesized Lemke dye and fabricated the microcavities by using simple vacuum evaporation and spin-coating methods. The vacuum Rabi splitting energy increases in proportion to the square root of the absorption coefficient of the cavity layers and exceeds 1 eV at maximum. The ratio of the vacuum Rabi splitting energy to the matter transition energy reaches 0.42, so we consider that the ultrastrong-coupling regime was attained. The dispersion relation is reasonably interpreted by using the full Hopfield Hamiltonian.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5080623