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| Autores principales: | , |
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| Formato: | Recurso digital |
| Lenguaje: | |
| Publicado: |
Zenodo
2025
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| Acceso en línea: | https://doi.org/10.5281/zenodo.17752556 |
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- Efficient and unidirectional single-photon sources are crucial for advancing quantum technologies, including quantum communication, computing, and metrology. Conventional single-photon emitters often suffer from omnidirectional emission and low collection efficiency. This paper explores the potential of quantum-enhanced metasurfaces to overcome these limitations, focusing on highly directional single-photon emission. Metasurfaces are ultrathin engineered nanostructures. They offer unprecedented control over light-matter interaction at the nanoscale, enabling tailored photonic environments for embedded quantum emitters. We review the fundamental principles of single-photon generation, the capabilities of metasurfaces in manipulating electromagnetic fields, and synergistic integration strategies. This includes discussions on Purcell enhancement, wavefront shaping, and engineering of the local density of states to steer single photons. We delve into both plasmonic and dielectric metasurface designs, highlighting their advantages and challenges in achieving high outcoupling efficiency, photon purity, and indistinguishability. Furthermore, the paper proposes theoretical and experimental methodologies for designing, fabricating, and characterizing these quantum-enhanced metasurfaces. Anticipated results suggest that optimized metasurface designs can significantly boost emission directionality and efficiency while preserving photon quantum properties. The discussion addresses the critical role of material platforms, nanofabrication precision, and the potential for scalable integration. This interdisciplinary field promises compact, high-performance single-photon sources crucial for next-generation quantum photonic circuits and systems.