Daniel Ratchford, Dr. Farbod Shafiei, Dr. Stephen K. Gray and Prof. Xiaoqin Li Polarization Properties of a CdSe/ZnS and Au Nanoparticle Dimer ChemPhysChem 13
A hybrid CdSe/ZnS quantum dot and gold nanoparticle dimer is assembled using AFM nanomanipulation. The quantum dot acquires a pronounced polarization dependence on the incident excitation light due to the excitation of localized surface plasmons in the gold nanoparticle (see picture). A large polarization contrast ratio beyond the maximum field enhancement is observed and explained quantitatively.
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