Open AccessLayered superlensing in two-dimensional photonic crystals
Author(s) -
Haifei Zhang,
Linfang Shen,
Lixin Ran,
Yu Yu,
Jin Au Kong
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.011178
Subject(s) - photonic crystal , hexagonal lattice , optics , finite difference time domain method , square lattice , photonics , lattice constant , flexibility (engineering) , lattice (music) , materials science , physics , diffraction , mathematics , condensed matter physics , statistics , antiferromagnetism , ising model , acoustics
We demonstrate layered superlensing in two-dimensional photonic crystals structured by both square and triangular lattices. In virtue of equifrequency contour analysis and FDTD calculation, both near field and far field imaging are displayed. Layered superlensing consisting of only triangular lattice photonic crystal is also studied and it exhibits more flexibility than the single layer counterpart. That is, the objective distance can be changed freely while keeping the image distance constant and vice versa. Hence, farther field imaging is achieved.