Fig. 2: Dark field characterization of Pd-glazed NPoMs. | Nature Communications

Fig. 2: Dark field characterization of Pd-glazed NPoMs.

From: Alchemically-glazed plasmonic nanocavities using atomic layer metals: controllably synergizing catalysis and plasmonics

Fig. 2: Dark field characterization of Pd-glazed NPoMs.

a Schematic of NPoMs integrated with monolayer Pd metal (grey) on different sides of the nanogap, and the corresponding histogram of their \((10)\) mode peak wavelengths (\({\lambda }_{10}\)). Arrows show predicted diameter of bottom facets (\({f}_{1} < {f}_{2} < {f}_{3} < {f}_{4}\)), see text. b Comparison of average dark-field scattering spectra for the four NPoM geometries in a, using the central (most common) bin. Arrows mark resonance position of higher energy (20) mode. c Intensity (I10) and resonance wavelength (λ10) of the four different geometries in a, error bars below point size.

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