Engineering the impact of phonon dephasing on the coherence of a WSe$_{2}$ single-photon source via cavity quantum electrodynamics
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866910397524606976 |
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| author | Mitryakhin, Victor Nikolaevich Steinhoff, Alexander Drawer, Jens-Christian Shan, Hangyong Florian, Matthias Lackner, Lukas Han, Bo Eilenberger, Falk Tongay, Sefaattin Watanabe, Kenji Taniguchi, Takashi Antón-Solanas, Carlos Predojević, Ana Gies, Christopher Esmann, Martin Schneider, Christian |
| author_facet | Mitryakhin, Victor Nikolaevich Steinhoff, Alexander Drawer, Jens-Christian Shan, Hangyong Florian, Matthias Lackner, Lukas Han, Bo Eilenberger, Falk Tongay, Sefaattin Watanabe, Kenji Taniguchi, Takashi Antón-Solanas, Carlos Predojević, Ana Gies, Christopher Esmann, Martin Schneider, Christian |
| contents | Emitter dephasing is one of the key issues in the performance of solid-state single photon sources. Among the various sources of dephasing, acoustic phonons play a central role in adding decoherence to the single photon emission. Here, we demonstrate, that it is possible to tune and engineer the coherence of photons emitted from a single WSe$_2$ monolayer quantum dot via selectively coupling it to a spectral cavity resonance. We utilize an open cavity to demonstrate spectral enhancement, leveling, and suppression of the highly asymmetric phonon sideband, finding excellent agreement with a microscopic description of the exciton-phonon dephasing in a truly two-dimensional system. Moreover, the impact of cavity tuning on the dephasing is directly assessed via optical interferometry, which points out the capability to utilize light-matter coupling to steer and design dephasing and coherence of quantum emitters in atomically thin crystals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_06891 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Engineering the impact of phonon dephasing on the coherence of a WSe$_{2}$ single-photon source via cavity quantum electrodynamics Mitryakhin, Victor Nikolaevich Steinhoff, Alexander Drawer, Jens-Christian Shan, Hangyong Florian, Matthias Lackner, Lukas Han, Bo Eilenberger, Falk Tongay, Sefaattin Watanabe, Kenji Taniguchi, Takashi Antón-Solanas, Carlos Predojević, Ana Gies, Christopher Esmann, Martin Schneider, Christian Quantum Physics Optics Emitter dephasing is one of the key issues in the performance of solid-state single photon sources. Among the various sources of dephasing, acoustic phonons play a central role in adding decoherence to the single photon emission. Here, we demonstrate, that it is possible to tune and engineer the coherence of photons emitted from a single WSe$_2$ monolayer quantum dot via selectively coupling it to a spectral cavity resonance. We utilize an open cavity to demonstrate spectral enhancement, leveling, and suppression of the highly asymmetric phonon sideband, finding excellent agreement with a microscopic description of the exciton-phonon dephasing in a truly two-dimensional system. Moreover, the impact of cavity tuning on the dephasing is directly assessed via optical interferometry, which points out the capability to utilize light-matter coupling to steer and design dephasing and coherence of quantum emitters in atomically thin crystals. |
| title | Engineering the impact of phonon dephasing on the coherence of a WSe$_{2}$ single-photon source via cavity quantum electrodynamics |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2307.06891 |