Fig. 1: Characterization of GNAs.
From: All-in-one, all-optical logic gates using liquid metal plasmon nonlinearity

a Photograph of bulk Galinstan droplet maintaining a liquid phase well at room temperature. b Real and (c) imaginary part of the dielectric constant of Galinstan, Ag, and Au. d TEM of GNAs. e Corresponding size distribution counting of GNAs (Inset: Magnified TEM for single Galinstan nanodroplet. The dashed line notes the boundary of Ga2O3 shell). f Experimental and simulated visible-infrared absorption spectra of GNAs. g Top panels: experimental SSPM diffraction ring patterns from the GNA dispersion for n2 measurement. Bottom panels: numerical simulations based on Kirchhoff’s diffraction integral. h Comparison of n2 between GNAs and typical reported nanomaterials extracted from SSPM measurement. References: Black-phosphorus36, Graphene37, Antimonene38, CsPbI339, SnS40, Bismuthene41, Graphene Oxide42, MoS243, TaSe244, Bi2Te345, Bi2Se346.