Nano antenna-assisted quantum dots emission into high-index planar waveguide
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arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
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| _version_ | 1866916133306630144 |
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| author | Yu, X. Weeber, J. -C. Markey, L. Arocas, J. Bouhelier, A. Leray, A. Francs, G. Colas des |
| author_facet | Yu, X. Weeber, J. -C. Markey, L. Arocas, J. Bouhelier, A. Leray, A. Francs, G. Colas des |
| contents | Integrated quantum photonic circuits require the efficient coupling of photon sources to photonic waveguides. Hybrid plasmonic/photonic platforms are a promising approach, taking advantage of both plasmon modal confinement for efficient coupling to a nearby emitter and photonic circuitry for optical data transfer and processing. In this work, we established directional quantum dot (QD) emission coupling to a planar TiO$_2$ waveguide assisted by a Yagi-Uda antenna. Antenna on waveguide is first designed by scaling radio frequency dimensions to nano-optics, taking into account the hybrid plasmonic/photonic platform. Design is then optimized by full numerical simulations. We fabricate the antenna on a TiO$_2$ planar waveguide and deposit a few QDs close to the Yagi-Uda antenna. The optical characterization shows clear directional coupling originating from antenna effect. We estimate the coupling efficiency and directivity of the light emitted into the waveguide. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_13557 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nano antenna-assisted quantum dots emission into high-index planar waveguide Yu, X. Weeber, J. -C. Markey, L. Arocas, J. Bouhelier, A. Leray, A. Francs, G. Colas des Mesoscale and Nanoscale Physics Optics Integrated quantum photonic circuits require the efficient coupling of photon sources to photonic waveguides. Hybrid plasmonic/photonic platforms are a promising approach, taking advantage of both plasmon modal confinement for efficient coupling to a nearby emitter and photonic circuitry for optical data transfer and processing. In this work, we established directional quantum dot (QD) emission coupling to a planar TiO$_2$ waveguide assisted by a Yagi-Uda antenna. Antenna on waveguide is first designed by scaling radio frequency dimensions to nano-optics, taking into account the hybrid plasmonic/photonic platform. Design is then optimized by full numerical simulations. We fabricate the antenna on a TiO$_2$ planar waveguide and deposit a few QDs close to the Yagi-Uda antenna. The optical characterization shows clear directional coupling originating from antenna effect. We estimate the coupling efficiency and directivity of the light emitted into the waveguide. |
| title | Nano antenna-assisted quantum dots emission into high-index planar waveguide |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2402.13557 |