Fig. 2: 3D full-wave simulations for the disordered plasmonic system with deterministic coupling to the optical environment. | Nature Communications

Fig. 2: 3D full-wave simulations for the disordered plasmonic system with deterministic coupling to the optical environment.

From: Manipulating disordered plasmonic systems by external cavity with transition from broadband absorption to reconfigurable reflection

Fig. 2

ac Schematic diagram of platforms with different disorder parameters α for a α = 0, b α = 0.2, c α = 0.5. df The corresponding reflection spectra R as a function of spacer thickness from FDTD simulations. d corresponds to setup in a, e corresponds to setup in b while f corresponds to setup in e. Interestingly, the introduction of disorder creates and narrows the reflection peaks. A prominent transition from broadband absorption to turnable reflection is observed in f. g, h Spatial distributions of the electrical field intensity in x–z and y–z plane for g t = 50 nm and h t = 110 nm. A plane wave is launched at z = 200 nm (blacked dashed lines) along the y direction with wavelength λ = 400 nm.

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