Figure 2 | Scientific Reports

Figure 2

From: Leaky and waveguide modes in biperiodic holograms

Figure 2

(a) TM-polarized reflectivity spectrum as a function of wavelength (λ) for the biperiodic waveguide structure with a superimposed period of Λ = 4500 nm. (b,c) Normalized electric field intensity profiles above and within such a waveguide with Λ = 4500 nm at two distinct resonant wavelengths. TM-polarized reflectivity curves for (d) the single-period grating (Λ = 350 nm) with two independent (leaky mode and waveguide mode) resonances, and the same for (e) biperiodic structure (Λ = 4500 nm) with two independent resonances due to leaky modes.

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