A 3D optical metamaterial made by self-assembly.
Optical metamaterials have unusual optical characteristics that arise from their periodic nanostructure. Their manufacture requires the assembly of 3D architectures with structure control on the 10-nm length scale. Such a 3D optical metamaterial, based on the replication of a self-assembled block copolymer into gold, is demonstrated. The resulting gold replica has a feature size that is two orders of magnitude smaller than the wavelength of visible light. Its optical signature reveals an archetypal Pendry wire metamaterial with linear and circular dichroism.
Department of Physics, University of Cambridge, Cambridge, UK.
Silvia
S
Vignolini
Nataliya A
NA
Yufa
Pedro S
PS
Cunha
Stefan
S
Guldin
Ilia
I
Rushkin
Morgan
M
Stefik
Kahyun
K
Hur
Ulrich
U
Wiesner
Jeremy J
JJ
Baumberg
Ullrich
U
Steiner
D002070:Butadienes / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D055620:Optical Phenomena; D010420:Pentanes / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*
D002070:Butadienes; D010420:Pentanes; D011137:Polystyrenes; C522518:polystyrene-block-polyisoprene; D006046:Gold