Figure 3
From: Fabry-Perot cavity resonance enabling highly polarization-sensitive double-layer gold grating
(a) Schematic diagram of the transmission and the reflection coefficients of the double-layer Au grating. (b) Transmission and reflection spectra obtained by a full-wave simulation (based on FIT) of the actual double-layer Au grating structure and the analytical calculation (using the multiple-layer model). (c) Phase terms, \(\varphi ({r}_{21})\), \(\varphi ({r}_{23})\), 2β, γ in the FP cavity resonance condition.
