A deterministic approach for integrating an emitter in a nanocavity with subwavelength light confinement
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911607174463488 |
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| author | Bille-Lauridsen, Valdemar Christiansen, Rasmus Ellebæk Yu, Yi Mørk, Jesper |
| author_facet | Bille-Lauridsen, Valdemar Christiansen, Rasmus Ellebæk Yu, Yi Mørk, Jesper |
| contents | We introduce a novel light-matter interface that integrates a nanoscale buried heterostructure emitter into a dielectric bowtie cavity, co-localising the optical hotspot and the electronic wavefunction. This platform enables strong light-matter interaction through deep subwavelength confinement while remaining compatible with scalable fabrication. We show that in this regime an explicit treatment of the emitter's spatial extent is required, and that a confinement-factor approximation more accurately predicts the coupling, revealing design rules inaccessible to dipole-based metrics. For an InP/InGaAsP system, we predict coupling strengths of 0.4-0.7 meV for gap sizes of 50-10 nm, establishing the buried heterostructure-bowtie architecture as a practical route to deterministic strong coupling in solid-state nanophotonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_19372 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A deterministic approach for integrating an emitter in a nanocavity with subwavelength light confinement Bille-Lauridsen, Valdemar Christiansen, Rasmus Ellebæk Yu, Yi Mørk, Jesper Optics Quantum Physics We introduce a novel light-matter interface that integrates a nanoscale buried heterostructure emitter into a dielectric bowtie cavity, co-localising the optical hotspot and the electronic wavefunction. This platform enables strong light-matter interaction through deep subwavelength confinement while remaining compatible with scalable fabrication. We show that in this regime an explicit treatment of the emitter's spatial extent is required, and that a confinement-factor approximation more accurately predicts the coupling, revealing design rules inaccessible to dipole-based metrics. For an InP/InGaAsP system, we predict coupling strengths of 0.4-0.7 meV for gap sizes of 50-10 nm, establishing the buried heterostructure-bowtie architecture as a practical route to deterministic strong coupling in solid-state nanophotonics. |
| title | A deterministic approach for integrating an emitter in a nanocavity with subwavelength light confinement |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2512.19372 |