Electrical-control of third-order nonlinearity via Fano interference
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917301338505216 |
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| author | Mol, Deniz Eren Üzgüç, İbrahim Asrın Eyüpoğlu, Ulaş Atar, Kübra Taşkıran, Sena Aytas, Taner Tarik Ovali, Rasim Volga Sahin, Ramazan Tasgin, Mehmet Emre |
| author_facet | Mol, Deniz Eren Üzgüç, İbrahim Asrın Eyüpoğlu, Ulaş Atar, Kübra Taşkıran, Sena Aytas, Taner Tarik Ovali, Rasim Volga Sahin, Ramazan Tasgin, Mehmet Emre |
| contents | Programmable photonic computers necessitate the integration of electrically-tunable compact components into the photonic devices. In the state-of-the-art photonic quantum computers~(PQCs), phase-shift and displacement gates can be implemented in an electrically-programmable way. An efficient PQC, however, necessitates also the tuning of third or higher order nonlinearity for implementing continuous-variable~(CV) gates at a shorter sequence. Here, we demonstrate that such an optical component can be designed using Fano interference and Stark effect in a nonlinear nano-plasmonic system. We study the coupling of a broadband bright plasmon mode to a narrow linewidth quantum object(s), QO(s). We show that by shifting the level-spacing of the QO via Stark effect, one can continuously tune the third-order nonlinearity gate within a picosecond response time. We also present finite-difference time domain~(FDTD) simulations that take the retardation effects into account. In addition, we also show that enhancement due to Fano interference degrades if the QOs are positioned randomly as each QO introduces different phases. This reveals the importance of the spatial extent of the QO-ensemble to be employed in the experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_20906 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrical-control of third-order nonlinearity via Fano interference Mol, Deniz Eren Üzgüç, İbrahim Asrın Eyüpoğlu, Ulaş Atar, Kübra Taşkıran, Sena Aytas, Taner Tarik Ovali, Rasim Volga Sahin, Ramazan Tasgin, Mehmet Emre Optics Applied Physics Quantum Physics Programmable photonic computers necessitate the integration of electrically-tunable compact components into the photonic devices. In the state-of-the-art photonic quantum computers~(PQCs), phase-shift and displacement gates can be implemented in an electrically-programmable way. An efficient PQC, however, necessitates also the tuning of third or higher order nonlinearity for implementing continuous-variable~(CV) gates at a shorter sequence. Here, we demonstrate that such an optical component can be designed using Fano interference and Stark effect in a nonlinear nano-plasmonic system. We study the coupling of a broadband bright plasmon mode to a narrow linewidth quantum object(s), QO(s). We show that by shifting the level-spacing of the QO via Stark effect, one can continuously tune the third-order nonlinearity gate within a picosecond response time. We also present finite-difference time domain~(FDTD) simulations that take the retardation effects into account. In addition, we also show that enhancement due to Fano interference degrades if the QOs are positioned randomly as each QO introduces different phases. This reveals the importance of the spatial extent of the QO-ensemble to be employed in the experiments. |
| title | Electrical-control of third-order nonlinearity via Fano interference |
| topic | Optics Applied Physics Quantum Physics |
| url | https://arxiv.org/abs/2510.20906 |