Nanoparticle Stressor-Induced Single-photon Sources in Monolayer WS$_2$ Emitting into a Narrowband Visible Spectral Range
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866912138195369984 |
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| author | S, J. Thoppil Waheed, Y. Shit, S. Prasad, I. D. Watanabe, K. Taniguchi, T. Kumar, S. |
| author_facet | S, J. Thoppil Waheed, Y. Shit, S. Prasad, I. D. Watanabe, K. Taniguchi, T. Kumar, S. |
| contents | A van der Waals heterostructure containing an atomically thin monolayer transition-metal dichalcogenide as a single-photon emitting layer is emerging as an intriguing solid-state quantum-photonic platform. Here, we report the utilization of spin-coating of silica nanoparticles for deterministically creating the spectrally isolated, energetically stable, and narrow-linewidth single-photon emitters in ML-WS$_2$. We also demonstrate that long-duration low-temperature annealing of the photonic heterostructure in the vacuum removes the energetically unstable emitters that are present due to fabrication-associated residue and lead to the emission of single-photons in a <25 nm narrowband visible spectral range centered at $\sim$620 nm. This work may pave the way toward realizing a hybrid-quantum-photonic platform containing a van der Waals heterostructure/device and an atomic-vapor system emitting/absorbing in the same visible spectral range. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2310_07578 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Nanoparticle Stressor-Induced Single-photon Sources in Monolayer WS$_2$ Emitting into a Narrowband Visible Spectral Range S, J. Thoppil Waheed, Y. Shit, S. Prasad, I. D. Watanabe, K. Taniguchi, T. Kumar, S. Applied Physics Quantum Physics A van der Waals heterostructure containing an atomically thin monolayer transition-metal dichalcogenide as a single-photon emitting layer is emerging as an intriguing solid-state quantum-photonic platform. Here, we report the utilization of spin-coating of silica nanoparticles for deterministically creating the spectrally isolated, energetically stable, and narrow-linewidth single-photon emitters in ML-WS$_2$. We also demonstrate that long-duration low-temperature annealing of the photonic heterostructure in the vacuum removes the energetically unstable emitters that are present due to fabrication-associated residue and lead to the emission of single-photons in a <25 nm narrowband visible spectral range centered at $\sim$620 nm. This work may pave the way toward realizing a hybrid-quantum-photonic platform containing a van der Waals heterostructure/device and an atomic-vapor system emitting/absorbing in the same visible spectral range. |
| title | Nanoparticle Stressor-Induced Single-photon Sources in Monolayer WS$_2$ Emitting into a Narrowband Visible Spectral Range |
| topic | Applied Physics Quantum Physics |
| url | https://arxiv.org/abs/2310.07578 |