Cu nanoshells: Effects of interband transitions on the nanoparticle plasmon resonance

Article Abstract:

The optical properties of Cu, whose strong interband transitions dominate its optical response in the visible region of the spectrum, are examined in nanoshell geometry. Spectral overlap of the interband transitions of Cu with the nanoshell plasmon resonance results in striking double-peaked plasmon resonance, a unique phenomenon previously unobserved in other noble or coinage metal nanostuctures.

Electric properties, Plasmons (Physics), Copper compounds

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Reduced symmetry metallodielectric nanoparticles: chemical synthesis and plasmonic properties

Article Abstract:

A general chemical strategy for producing reduced symmetry metallodieelectric nanoparticles, nanocups and nanocaps that combine nanoscale masking techniques and nanoparticle- seeded electroless plating is reported. The optical response of these nanostructures as a function of their orientation dependence with respect to the angle of light incidence and polarization is also studied.

Nuclear polarization, Chemical synthesis, Polarization (Nuclear physics), Chemical properties

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Laser-induced reshaping of metallodielectric nanoshells under femtosecond and nanosecond plasmon resonant illumination

Article Abstract:

A series of pulsed-laser-induced reshaping experiments on SiO2-Au metallodielectric core-shell nanoparticles, known as nanoshells, are reported. It is shown that the use of femtosecond pulse leads to an efficient and controllable heating regime compared to the use of nanosecond pulses.

Analysis, Nanotechnology, Ablation (Vaporization technology), Laser ablation, Nanolithography

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