Layered superlensing in two-dimensional photonic crystals.
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.
Zhang
Haifei
H
Shen
Linfang
L
Ran
Lixin
L
Yuan
Yu
Y
Kong
Jin Au
JA