Photonic band structure: The face-centered-cubic case.

Fast Lanczos Eigenvalue Solvers for Band Structures of Three Dimensional Photonic Crystals with Face-Centered Cubic Lattice

To numerically determine the band structure of three-dimensional photonic crystals with face-centered cubic lattices, we study how the associated large-scale eigenvalue problems can be solved efficiently. Due to the complexity of the coefficient matrix and the fact that the desired eigenvalues are interior, a standard shift-and-invert Lanczos method (SILM) is usually not efficient. We first pro...

Full vector wave calculation of photonic band structures in face-centered-cubic dielectric media.

Large omnidirectional band gaps in metallodielectric photonic crystals.

Using a finite-difference time-domain method, we study the band-structure and transmission properties of three-dimensional metallodielectric photonic crystals. The metallodielectric crystals are modeled as perfect electrical conducting objects embedded in dielectric media. We investigate two different lattice geometries: the face-centered-cubic ~fcc! lattice and the diamond lattice. Partial gap...

Enhanced the Complete Photonic Band Gaps for Three-Dimensional Photonic Crystals Consisting of Epsilon-Negative Materials in Pyrochlore Arrangement

In this paper, the properties of photonic band gaps (PBGs) for three-dimensional (3D) photonic crystals (PCs) composed of isotropic positive-index materials and epsilon-negative materials with pyrochlore lattices are theoretically investigated by a modified plane wave expansion method. The eigenvalue equations of calculating the band structures for such 3D PCs in the first irreducible Brillouin...

Synthesis and Morphology of Face Centered Cubic (FCC) Fe-Pt Nanoparticles

FePt nanoparticles with thermally stable room-temperature ferromagnetism are investigated. The monodisperse nanoparticles are prepared by chemical synthesis and a salt-matrix annealing technique. Structural and magnetic characterizations confirm the phase transition from the disordered face-centered cubic structure. In this paper, 3 nm FePt nanoparticles are first synthesized by superhydride re...