Controlling emitter-field coupling in waveguides with a nanomechanical phase shifter
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866910854232932352 |
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| author | Qvotrup, Celeste Wang, Ying Albrechtsen, Marcus Thomas, Rodrigo A. Liu, Zhe Scholz, Sven Ludwig, Arne Midolo, Leonardo |
| author_facet | Qvotrup, Celeste Wang, Ying Albrechtsen, Marcus Thomas, Rodrigo A. Liu, Zhe Scholz, Sven Ludwig, Arne Midolo, Leonardo |
| contents | The ability to control light-matter interfaces with solid-state photon emitters is a major requirement for the development of quantum photonic integrated circuits. We demonstrate controllable coupling between a quantum dot and an optical mode in a dielectric waveguide using a nano-opto-electro-mechanical phase shifter and a photonic crystal mirror. By controlling the phase, we induce a virtual displacement of the mirror that modifies the local density of states at the position of the emitter, thereby enhancing or suppressing spontaneous emission without an optical cavity. We observe a broadband tuning of the spontaneous emission rate and a modulation of the intensity emitted by the quantum dot in the waveguide. The method reported here could be employed to optimize the emitter-field interaction between quantum dots in-operando, by maximizing a single-photon source generation rate or adjusting its lifetime, as well as a characterization tool for the direct measurement of emitter-photon cooperativity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_01014 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Controlling emitter-field coupling in waveguides with a nanomechanical phase shifter Qvotrup, Celeste Wang, Ying Albrechtsen, Marcus Thomas, Rodrigo A. Liu, Zhe Scholz, Sven Ludwig, Arne Midolo, Leonardo Quantum Physics Optics The ability to control light-matter interfaces with solid-state photon emitters is a major requirement for the development of quantum photonic integrated circuits. We demonstrate controllable coupling between a quantum dot and an optical mode in a dielectric waveguide using a nano-opto-electro-mechanical phase shifter and a photonic crystal mirror. By controlling the phase, we induce a virtual displacement of the mirror that modifies the local density of states at the position of the emitter, thereby enhancing or suppressing spontaneous emission without an optical cavity. We observe a broadband tuning of the spontaneous emission rate and a modulation of the intensity emitted by the quantum dot in the waveguide. The method reported here could be employed to optimize the emitter-field interaction between quantum dots in-operando, by maximizing a single-photon source generation rate or adjusting its lifetime, as well as a characterization tool for the direct measurement of emitter-photon cooperativity. |
| title | Controlling emitter-field coupling in waveguides with a nanomechanical phase shifter |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2503.01014 |