Open AccessFar-field focusing properties of two-dimensional honeycomb photonic crystals and the effect of the interface
Author(s) -
Guojun Li,
Xueliang Kang,
Yongping Li
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.6403
Subject(s) - photonic crystal , slab , optics , rod , materials science , negative refraction , refractive index , honeycomb structure , honeycomb , lattice (music) , photonics , physics , medicine , alternative medicine , pathology , geophysics , acoustics , composite material
The far-field focusing properties of two dimensional rod-type honeycomb lattice photonic crystals are investigated by using finite difference time domain methodand it was found that it explicitly follows the wave-beam negative refraction law with relative refractive index of -1. But the image qualities are limited by low transmission at large incident angles. The image qualities can be improved by modifying the radius of rods near the surface of photonic crystals slab.