Dong, Jian-Wen, Fung, Kin Hung, Chan, C. T., Wang, He-Zhou
Using the eigen-decomposition method, we investigated the plasmonic modes in a two-dimensional quasicrystalline array of metal nanoparticles. Various properties of the plasmonic modes, such as their...
Fung, Kin Hung, Tang, Ross Chin Hang, Chan, C. T.
When the surface plasmon resonance in a metal-nanoparticle chain is excited at one point, the response signal will generally decay down the chain due to absorption and radiation losses. The decay...
Negative Group Velocity from Quadrupole Resonance of Plasmonic Spheres (2008)
Han, Dezhuan, Lai, Yun, Fung, Kin Hung, Zhang, Zhao-Qing, Chan, C. T.
We study the dispersions of plasmonic bands that arise from the coupling of electric quadrupole resonances in three dimensional photonic crystals (PCs) consisting of plasmonic spheres. Through...
Negative group velocity in layer-by-layer chiral photonic crystals (2008)
Fung, Kin Hung, Lee, Jeffrey Chi Wai, Chan, C. T.
We study the group velocity of light in layer-by-layer chiral photonic crystals composed of dielectrics and metals. Through studying the band structures with an extended-zone scheme that is given by...
Collective plasmonic modes of metal nano-particles in two-dimensional periodic regular arrays (2008)
Zhen, Yu-Rong, Fung, Kin Hung, Chan, C. T.
We investigate the collective plasmonic modes of metal nano-particles in periodic two-dimensional (2D) arrays within a point-dipole description. As an open system, the full-dynamic dispersion...
Analytical study of the plasmonic modes of metal nanoparticle circular array (2007)
We analyze the plasmonic modes of a metal nanoparticle circular array. Closed form solutions to the eigenmode problem are given. For each polarization, the plasmonic mode with the highest quality is...
Plasmonic modes in periodic metal nanoparticle chains: A direct dynamic eigenmode analysis (2006)
We demonstrate an efficient eigen-decomposition method for analyzing the guided modes in metal nanoparticle chains. The proposed method has the advantage of showing the dispersion relation and mode...
Optical response of metal nanoparticle chains (2006)
We study the optical responses of metal nanoparticle chains. Multiple scattering calculations are used to study the extinction cross sections of silver nanosphere chains of finite length embedded in...