Experimental implementation of tunable hybrid Tamm-microcavity modes

Mode hybridization is a unique way to manipulate the mode inside a fixed cavity or at interface. For example, Tamm plasmon-polariton at solid interface can be spectrally shifted without tuning the interface. Experimental implementation of tunable hybrid Tamm-microcavity modes is reported. The hybrid...

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Bibliographic Details
Published in:Applied physics letters 2021-10, Vol.119 (16)
Main Authors: Pankin, P. S., Sutormin, V. S., Gunyakov, V. A., Zelenov, F. V., Tambasov, I. A., Masyugin, A. N., Volochaev, M. N., Baron, F. A., Chen, K. P., Zyryanov, V. Ya, Vetrov, S. Ya, Timofeev, I. V.
Format: Article
Language:English
Subjects:
Applied physics
Coupling
Dispersion curve analysis
Electric fields
Hybrid modes
Incident light
Liquid crystals
Nematic crystals
Photonic crystals
Polaritons
Refractivity
Tuning
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Summary:Mode hybridization is a unique way to manipulate the mode inside a fixed cavity or at interface. For example, Tamm plasmon-polariton at solid interface can be spectrally shifted without tuning the interface. Experimental implementation of tunable hybrid Tamm-microcavity modes is reported. The hybrid modes are excited in a one-dimensional photonic crystal bounded with a gold layer by attaching a nematic liquid crystal microcavity. Coupling between Tamm plasmon-polariton and microcavity modes leads to repulsion of their dispersion curves controlled by the refractive index of a liquid crystal and the polarization of incident light. Effective tuning of hybrid modes through heating or applying an external electric field to the liquid crystal layer is demonstrated. The experimentally measured strength coupling value between Tamm and microcavity modes was 20.7 meV.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0067179