Figure 1 | Scientific Reports

Figure 1

From: Resonator-free optical bistability based on epsilon-near-zero mode

Figure 1The alternative text for this image may have been generated using AI.

(a) Three-layer Si-graphene-Si structure. (b) Dispersion curve of guided mode in Si/Graphene/Si geometry shown in (a) and the complex permittivity of graphene for Fermi level of EF = 0.5 eV. (c) Amplitude of the surface-normal component of the electric field |Ex| for EF = 0.5 eV at P1 (red line) and P2 (black dash) indicted in (b). (d) Dispersion curves of Si/Graphene/Si geometry for various Fermi level: EF = 0.5 eV.

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