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(a) Metal nanoparticle array: ordered (unshaded) and disordered (shaded). (b) Brillouin zone of (a) with surfaces of equal frequencies and the regions of bright SP for ordered (smaller shaded disk) and disordered (larger shaded disk). (c) Bottom: dispersion curves for SP with frequency and momentum spreads caused by disorder. Also shown is the extension of bright band with disorder. Top: radiative decay rate of ordered (solid) and 10% disordered (dashed line) SP modes.
SP energy (square of polarization) in the disordered lattice.
(a) Dispersion of scattering rate (broadening) of SP in units of (b) Dispersion of wavevector spread (in unit so inverse lattice constant) for 3º of disorder.
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