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Title: Strong plasmon–exciton interactions on nanoantenna array–monolayer WS2 hybrid system
Authors: Liu, Lin
Tobing, Landobasa Yosef Mario
Yu, Xuechao
Tong, Jinchao
Qiang, Bo
Fernández-Domínguez, Antonio I.
Garcia-Vidal, Francisco J.
Zhang, Dao Hua
Wang, Qijie
Luo, Yu
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Liu, L., Tobing, L. Y. M., Yu, X., Tong, J., Qiang, B., Fernández-Domínguez, A. I., . . . Luo, Y. (2020). Strong plasmon–exciton interactions on nanoantenna array–monolayer WS2 hybrid system. Advanced Optical Materials, 8(5), 1901002-. doi:10.1002/adom.201901002
Journal: Advanced Optical Materials
Abstract: Strong plasmon–exciton interactions in monolayer transition-metal dichalcogenides (TMDs) is emerging as a promising material platform for light emissions, nonlinear optics, and quantum communications, and their realizations require highly localized electric fields parallel to the transition dipole moment of TMD excitons. Here, a systematic study of light–matter interaction in planar dimer nanoantenna of nanoscale gaps coupled with monolayer WS2 is presented, where the effects of the local field enhancement and spatial mode overlap in the plasmon–exciton coupling strength are experimentally investigated. Importantly, anticrossing behaviors in the strong coupling regime with a Rabi splitting of Ω = 118 meV for gold bowtie antennas with 7 nm gaps and Ω = 138 meV for gold dimer arrays with 10 nm gaps are demonstrated.
ISSN: 2195-1071
DOI: 10.1002/adom.201901002
Rights: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Optical Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: embargo_20210312
Fulltext Availability: With Fulltext
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