47 citations · 113 across the 5 of their papers we have counts for
5 papers
Dispersion and transitions of dipolar plasmon modes in graded plasmonic waveguides
J. J. Xiao, K. Yakubo, K. W. Yu
Coupled plasmon modes are studied in graded plasmonic waveguides, which are periodic chains of metallic nanoparticles embedded in a host with gradually varying refractive indices.…
Optical switching in graded plasmonic waveguides
J. J. Xiao, K. Yakubo, K. W. Yu
A new mechanism of longitudinal confinement of optical energy via coupled plasmon modes is proposed in chains of noble metal nanoparticles embedded in a graded dielectric medium, w…
Giant enhanced optical nonlinearity of colloidal nanocrystals with a graded-index host
J. J. Xiao, K. W. Yu
The effective linear and third-order nonlinear optical properties of metallic colloidal crystal immersed in a graded-index host fluid are investigated theoretically. The local elec…
Harmonic vibrational excitations in graded elastic networks: transition from phonons to gradons
J. J. Xiao, K. Yakubo, K. W. Yu
We have identified a new type of transition from extended to localized vibrational states in one-dimensional graded elastic chains of coupled harmonic oscillators, in which the vib…
Optical response of strongly coupled metal nanoparticles in dimer arrays
J. J. Xiao, J. P. Huang, K. W. Yu
The optical responses of structured array of noble-metal nanoparticle dimers immersed in a glass matrix are investigated theoretically, motivated by the recent experimental observa…