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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Giant Enhancement of Second-Harmonic Generation in Hybrid Metasurface Coupled MoS2 with Fano-Resonance Effect

Fig. 2

SCSS of designed structures and their characteristic charge distributions. a SCSS of a wall ring, paired bull-eye rings, and the hybrid metasurface. Insets are the schematics of simulated structures. b SCSS (gray line) of the hybrid metasurface and the near-field enhancement (red line) at the center. The spectrum shows a simultaneous pronounced over-lap with the fundamental and SHG wavelengths, which are marked by red and purple stripes. The inset shows a unit of the hybrid metasurface. cf Charge distributions at featured peaks of 1′–4′

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