Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures

Sergey Lepeshov, Mingsong Wang, Alex Krasnok, Oleg Kotov, Tianyi Zhang, He Liu, Taizhi Jiang, Brian Korgel, Mauricio Terrones, Yuebing Zheng, Andrea Alú

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are extremely attractive materials for optoelectronic applications in the visible and near-infrared range. Coupling these materials to optical nanocavities enables advanced quantum optics and nanophotonic devices. Here, we address the issue of resonance coupling in hybrid exciton-polariton structures based on single Si nanoparticles (NPs) coupled to monolayer (1L)-WS2. We predict a strong coupling regime with a Rabi splitting energy exceeding 110 meV for a Si NP covered by 1L-WS2 at the magnetic optical Mie resonance because of the symmetry of the mode. Further, we achieve a large enhancement in the Rabi splitting energy up to 208 meV by changing the surrounding dielectric material from air to water. The prediction is based on the experimental estimation of TMDC dipole moment variation obtained from the measured photoluminescence spectra of 1L-WS2 in different solvents. An ability of such a system to tune the resonance coupling is realized experimentally for optically resonant spherical Si NPs placed on 1L-WS2. The Rabi splitting energy obtained for this scenario increases from 49.6 to 86.6 meV after replacing air by water. Our findings pave the way to develop high-efficiency optoelectronic, nanophotonic, and quantum optical devices.

Original languageEnglish (US)
Pages (from-to)16690-16697
Number of pages8
JournalACS Applied Materials and Interfaces
Volume10
Issue number19
DOIs
StatePublished - May 16 2018

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Nanophotonics
Monolayers
Nanoparticles
Optoelectronic devices
Transition metals
Quantum optics
Water
Dipole moment
Optical devices
Air
Excitons
Photoluminescence
Infrared radiation
LDS 751

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Lepeshov, S., Wang, M., Krasnok, A., Kotov, O., Zhang, T., Liu, H., ... Alú, A. (2018). Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures. ACS Applied Materials and Interfaces, 10(19), 16690-16697. https://doi.org/10.1021/acsami.7b17112
Lepeshov, Sergey ; Wang, Mingsong ; Krasnok, Alex ; Kotov, Oleg ; Zhang, Tianyi ; Liu, He ; Jiang, Taizhi ; Korgel, Brian ; Terrones, Mauricio ; Zheng, Yuebing ; Alú, Andrea. / Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures. In: ACS Applied Materials and Interfaces. 2018 ; Vol. 10, No. 19. pp. 16690-16697.
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abstract = "Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are extremely attractive materials for optoelectronic applications in the visible and near-infrared range. Coupling these materials to optical nanocavities enables advanced quantum optics and nanophotonic devices. Here, we address the issue of resonance coupling in hybrid exciton-polariton structures based on single Si nanoparticles (NPs) coupled to monolayer (1L)-WS2. We predict a strong coupling regime with a Rabi splitting energy exceeding 110 meV for a Si NP covered by 1L-WS2 at the magnetic optical Mie resonance because of the symmetry of the mode. Further, we achieve a large enhancement in the Rabi splitting energy up to 208 meV by changing the surrounding dielectric material from air to water. The prediction is based on the experimental estimation of TMDC dipole moment variation obtained from the measured photoluminescence spectra of 1L-WS2 in different solvents. An ability of such a system to tune the resonance coupling is realized experimentally for optically resonant spherical Si NPs placed on 1L-WS2. The Rabi splitting energy obtained for this scenario increases from 49.6 to 86.6 meV after replacing air by water. Our findings pave the way to develop high-efficiency optoelectronic, nanophotonic, and quantum optical devices.",
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Lepeshov, S, Wang, M, Krasnok, A, Kotov, O, Zhang, T, Liu, H, Jiang, T, Korgel, B, Terrones, M, Zheng, Y & Alú, A 2018, 'Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures', ACS Applied Materials and Interfaces, vol. 10, no. 19, pp. 16690-16697. https://doi.org/10.1021/acsami.7b17112

Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures. / Lepeshov, Sergey; Wang, Mingsong; Krasnok, Alex; Kotov, Oleg; Zhang, Tianyi; Liu, He; Jiang, Taizhi; Korgel, Brian; Terrones, Mauricio; Zheng, Yuebing; Alú, Andrea.

In: ACS Applied Materials and Interfaces, Vol. 10, No. 19, 16.05.2018, p. 16690-16697.

Research output: Contribution to journalArticle

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T1 - Tunable Resonance Coupling in Single Si Nanoparticle-Monolayer WS2 Structures

AU - Lepeshov, Sergey

AU - Wang, Mingsong

AU - Krasnok, Alex

AU - Kotov, Oleg

AU - Zhang, Tianyi

AU - Liu, He

AU - Jiang, Taizhi

AU - Korgel, Brian

AU - Terrones, Mauricio

AU - Zheng, Yuebing

AU - Alú, Andrea

PY - 2018/5/16

Y1 - 2018/5/16

N2 - Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are extremely attractive materials for optoelectronic applications in the visible and near-infrared range. Coupling these materials to optical nanocavities enables advanced quantum optics and nanophotonic devices. Here, we address the issue of resonance coupling in hybrid exciton-polariton structures based on single Si nanoparticles (NPs) coupled to monolayer (1L)-WS2. We predict a strong coupling regime with a Rabi splitting energy exceeding 110 meV for a Si NP covered by 1L-WS2 at the magnetic optical Mie resonance because of the symmetry of the mode. Further, we achieve a large enhancement in the Rabi splitting energy up to 208 meV by changing the surrounding dielectric material from air to water. The prediction is based on the experimental estimation of TMDC dipole moment variation obtained from the measured photoluminescence spectra of 1L-WS2 in different solvents. An ability of such a system to tune the resonance coupling is realized experimentally for optically resonant spherical Si NPs placed on 1L-WS2. The Rabi splitting energy obtained for this scenario increases from 49.6 to 86.6 meV after replacing air by water. Our findings pave the way to develop high-efficiency optoelectronic, nanophotonic, and quantum optical devices.

AB - Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are extremely attractive materials for optoelectronic applications in the visible and near-infrared range. Coupling these materials to optical nanocavities enables advanced quantum optics and nanophotonic devices. Here, we address the issue of resonance coupling in hybrid exciton-polariton structures based on single Si nanoparticles (NPs) coupled to monolayer (1L)-WS2. We predict a strong coupling regime with a Rabi splitting energy exceeding 110 meV for a Si NP covered by 1L-WS2 at the magnetic optical Mie resonance because of the symmetry of the mode. Further, we achieve a large enhancement in the Rabi splitting energy up to 208 meV by changing the surrounding dielectric material from air to water. The prediction is based on the experimental estimation of TMDC dipole moment variation obtained from the measured photoluminescence spectra of 1L-WS2 in different solvents. An ability of such a system to tune the resonance coupling is realized experimentally for optically resonant spherical Si NPs placed on 1L-WS2. The Rabi splitting energy obtained for this scenario increases from 49.6 to 86.6 meV after replacing air by water. Our findings pave the way to develop high-efficiency optoelectronic, nanophotonic, and quantum optical devices.

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