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. 2018 Jan 2;9(2):373–386. doi: 10.1364/BOE.9.000373

Fig. 3.

Fig. 3

(a) Surface current as a function of x-axis for three different gap spacing. (b) The toroidal scattering intensity as a function of frequency for three different gap spacing. (c) The Q factor of the toroidal lineshape and dephasing time (τ) as a function of three different gap spacing.