Abstract
Theoretical analysis of the scattering efficiency of an equidistantly spaced regular array of spherical silver nanoparticles reveals a nonmonotonic shift of the collective SPR wavelength and its bandwidth depending on the distance between the particles and the angle of the incidence of the linear polarized electromagnetic wave. The far-field electromagnetic coupling between the particles in the chain exhibits the largest range of angular tuning of the collective SPR band when the distance between the particles in the chain approaches that of the collective SPR wavelength. The dependence of the SPR wavelength and its bandwidth on the angle of the incidence of the linear polarized electromagnetic wave and the distance between the particles in the chain provides an additional flexibility for the development of optical biochemical sensors and subwavelength waveguides.
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