Acta Physica Sinica, Volume. 69, Issue 18, 184206-1(2020)
Fig. 1. Schematic diagram of a dielectric/metal core-shell placed above a gold film.
Fig. 2. (a) Scheme of plasmon hybridization picture of the core-shell on gold film; (b) scattering spectrum of core-shell particles on gold film. The inset of panel (b) shows the
Fig. 3. (a) Longitudinal optical force
Fig. 4. (a) Scattering spectra of the core-shell on gold film; (b) longitudinal optical force spectra of the core-shell on gold film; (c) maximum longitudinal optical force and the average electric-field intensity enhancement factor as a function of gap size for the core-shell on gold film.
Fig. 5. (a) Scattering spectra of the core-shell on gold film; (b) longitudinal optical force spectra of the core-shell on gold film; (c) maximum longitudinal optical force as well as the average electric-field intensity enhancement factor as a function of dielectric core radius for the core-shell on gold film.
Fig. 6. (a) Scattering spectra of the core-shell on gold film; (b) longitudinal optical force spectra of the core-shell on gold film; (c) maximum longitudinal optical force and the average electric-field intensity enhancement factor as a function of index for the core-shell on gold film.
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Jia-Chen Zhang, Wei-Xing Yu, Fa-Jun Xiao, Jian-Lin Zhao.
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Received: Feb. 13, 2020
Accepted: --
Published Online: Jan. 5, 2021
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