Fig. 2: Angular and Fermi-level dependence of reflection coefficients and emissivity. | Nature Communications

Fig. 2: Angular and Fermi-level dependence of reflection coefficients and emissivity.

From: Electrostatic steering of thermal emission with active metasurface control of delocalized modes

Fig. 2

Fermi-level and angular dependence of a the reflectance due to the F-B resonance (rFP2), b the direct reflectance from the top surface of the device (rdirect2), c The phase difference between the two reflection (ϕFP − ϕdirect), and d the emissivity of the device (ϵ). The blue dashed line in a indicates the F-P resonance condition. The black dashed line in c, d indicates the condition for destructive interference between rFP and rdirect, ϕFP − ϕdirect = π. All angular spectra are calculated for frequency ω = 1503 cm−1.

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