Gallium nanoparticles (Ga NPs) are currently the subject of vigorous research as possible substrates in surface-enhanced Raman\nscattering (SERS) experiments in the ultraviolet spectral domain. Verification of any comprehensive model of the interaction of\nelectromagnetic radiation with Ga NPs requires that complete polarimetric measurements be made. These spectropolarimetric\nproperties can be obtained using a Mueller matrix spectropolarimeter (MMSP). The position of localized surface plasmon\nresonances (LSPRs) and spectral depolarization data of Ga NPs in the 300 to 1100 nm spectral region are presented. Spectral\ndepolarization data may be of value in creating a better understanding of how light couples to individual nanoparticles, as well\nas the role played by in terparticle coupling and the connection to phenomena such as SERS.
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