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LSPR schematics. Schematic charge distribution, electric near-field amplitude distribution, and far-field scattering radiation pattern of a gold nanorod upon excitations of (a) its dipole mode (2,060 nm), (b) quadrupole mode (1,030 nm), and (c) sextupole mode (734 nm). Red numbers in the scattering patterns indicate the angles with maximal scattering power.
