Colloidal woodpile structure: three-dimensional photonic crystal with a dual periodicity.
With planar photolithography and self-assembly techniques, multilayer colloidal crystals with a woodpile structure were fabricated. They represent a new kind of photonic crystals, that is, three-dimensional (3D) photonic crystals with a dual periodicity; one comes from the face-centered cubic (fcc) structure within the colloidal crystal strips and the other one results from the periodic arrangement of the colloidal crystal strips.
Yan
Qingfeng
Q
Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576.
Zhao
X S
XS
Teng
Jing Hua
JH
Chua
Soo Jin
SJ