Fig. 3. Optical duality of Te nanoparticles.
(A) Real part of permittivity of Te compared with Au (a plasmonic material) and Si (an all-dielectric material). (B) Plasmonic-like behavior of Te nanoparticles with diameters smaller than 120 nm. (C) All-dielectric behavior of Te nanoparticles with diameters ranging from 120 to 340 nm. (D to F) Contributions of ED and MD to the scattering efficiency of Te nanoparticles embedded in air and water with diameters of 100, 200, and 300 nm, respectively.