Optical properties of two-dimensional negative-phase-velocity-medium photonic crystals.
By an extended plane-wave-based transfer-matrix method, the photonic band structure and the corresponding transmission spectrum have been calculated for a two-dimensional photonic crystal composed of negative-phase-velocity-medium (NPVM) cylindrical rods. Dispersionless anticrossing bands in the two-dimensional NPVM periodic structure are generated by the couplings among surface polaritons localized in the NPVM rods. In part of the negative-phase-velocity frequency region, the photonic band structures of the NPVM photonic crystal are characterized by a topographical continuous dispersion relationship accompanied by many anticrossing bands. The effect of the filling fraction of the NPVM rods on the optical properties of photonic crystals has also been studied.
Zeng
Yong
Y
Department of Theoretical Chemistry, Royal Institute of Technology, S-106 91 Stockholm, Sweden.
Fu
Ying
Y
Chen
Xiaoshuang
X
Lu
Wei
W
Agren
Hans
H