Continuous and Reversible Electrical Tuning of Fluorescent Decay Rate via Fano Resonance
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866908955475705856 |
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| author | Polat, Emre Ozan Artvin, Zafer Şaki, Yusuf Bek, Alpan Sahin, Ramazan |
| author_facet | Polat, Emre Ozan Artvin, Zafer Şaki, Yusuf Bek, Alpan Sahin, Ramazan |
| contents | We demonstrate that the decay rates of a fluorescent molecule can be controlled by electrically shifting a transparency introduced by a Fano resonance. An auxiliary quantum object (QO), located at the hotspot of a plasmonic nanoparticle, suppresses plasmonic excitation at its level spacing ω_QO. As a result, the local density of states (LDOS) associated with the plasmonic spectrum is also suppressed at ω=ω_QO. By shifting ω_QO via an applied voltage, we continuously tune the radiative and nonradiative decay rates of the fluorescent molecule by up to two orders of magnitude. This mechanism offers a valuable tool for integrated quantum technologies, enabling on-demand entanglement and single-photon sources, voltage-controlled quantum gate operations, and electrical control of superradiant-like phase transitions. The approach also holds promise for applications in super-resolution microscopy and surface-enhanced Raman spectroscopy (SERS). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_20199 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Continuous and Reversible Electrical Tuning of Fluorescent Decay Rate via Fano Resonance Polat, Emre Ozan Artvin, Zafer Şaki, Yusuf Bek, Alpan Sahin, Ramazan Optics Mesoscale and Nanoscale Physics Materials Science Computational Physics Quantum Physics We demonstrate that the decay rates of a fluorescent molecule can be controlled by electrically shifting a transparency introduced by a Fano resonance. An auxiliary quantum object (QO), located at the hotspot of a plasmonic nanoparticle, suppresses plasmonic excitation at its level spacing ω_QO. As a result, the local density of states (LDOS) associated with the plasmonic spectrum is also suppressed at ω=ω_QO. By shifting ω_QO via an applied voltage, we continuously tune the radiative and nonradiative decay rates of the fluorescent molecule by up to two orders of magnitude. This mechanism offers a valuable tool for integrated quantum technologies, enabling on-demand entanglement and single-photon sources, voltage-controlled quantum gate operations, and electrical control of superradiant-like phase transitions. The approach also holds promise for applications in super-resolution microscopy and surface-enhanced Raman spectroscopy (SERS). |
| title | Continuous and Reversible Electrical Tuning of Fluorescent Decay Rate via Fano Resonance |
| topic | Optics Mesoscale and Nanoscale Physics Materials Science Computational Physics Quantum Physics |
| url | https://arxiv.org/abs/2412.20199 |