ArticleNature communications2025
Multimode ultrastrong coupling in three-dimensional photonic-crystal cavities.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Dissipation in the broadband and ultrastrong coupling regimes of cavity quantum electrodynamics: an ab initio quantized quasinormal mode approach.Light, science & applications · 2026Article
- Ultrafast triggering of strong coupling in a semiconductor terahertz Fabry-Pérot cavity.Light, science & applications · 2026Article
- Polaritonic Spectra of Optical Mie Voids.Nanophotonics (Berlin, Germany) · 2026Article
- Cavity control of multiferroic order in single-layer NiInpj computational materials · 2026Article
- Cavity-mediated coupling between local and nonlocal modes in Landau polaritons.Nanophotonics (Berlin, Germany) · 2025Article
- Multimode phonon-polaritons in lead-halide perovskites in the ultrastrong coupling regime.Nature communications · 2025Article
- Terahertz chiral photonic-crystal cavities for Dirac gap engineering in graphene.Nature communications · 2025Article
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Authors and funding
11 authors.
Funding
Abstract
Recent theoretical studies have highlighted how spatially varying cavity electromagnetic fields enable novel cavity quantum electrodynamics phenomena, such as the Dicke superradiant phase transition. Three-dimensional photonic-crystal cavities, which exhibit discrete in-plane translational symmetry, overcome this limitation, but fabrication challenges have hindered the achievement of strong coupling. Here, we demonstrate multimode ultrastrong coupling between cavity modes of a three-dimensional photonic-crystal cavity at terahertz frequencies and the cyclotron resonance of a Landau-quantized two-dimensional electron gas in gallium arsenide. The multimode coupling depends on the spatial profiles of the cavity modes, resulting in distinct coupling scenarios based on probe polarization. Our results align with an extended multimode Hopfield model that accounts for spatial field variations. Guided by the model, we discuss possible strong ground-state correlations between cavity modes and introduce relevant figures of merit for multimode ultrastrong coupling. Our findings highlight the crucial role of spatial inhomogeneity in multimode ultrastrong coupling.
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Registered trials
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