Broadband super-collimation in a hybrid photonic crystal structure.
We propose a two dimensional (2D) photonic crystal (PhC) structure that supports super-collimation over a large frequency range (over 4 times that of a traditional square lattice of holes). We theoretically and numerically investigate the collimation mechanism in our 2D structure, in comparison to that of two other frequently used related PhC structures. We also point out the potential importance of our proposed structure in the design of super-collimation-based devices for both monochromatic and polychromatic light.
Center for Materials Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. rafif@mit.edu
Rafif E
RE
Hamam
Mihai
M
Ibanescu
Steven G
SG
Johnson
J D
JD
Joannopoulos
Marin
M
Soljacić