title: All-metal self-supported THz metamaterial--the meta-foil.
abstract: Modern metamaterials face functional constraints as they are commonly embedded in or deposited on dielectric materials. We provide a new solution by microfabricating a completely free-standing all-metal self-supported metamaterial. Using upright S-string architecture with the distinctive feature of metallic transverse interconnects, we form a locally stiff, globally flexible space-grid. Infrared Fourier transform interferometry reveals the typical double-peak structure of a magnetically excited left-handed and an electrically excited right-handed pass-band that is maintained under strong bending and heating, and is sensitive to dielectrics. Exploiting UV/X-ray lithography and ultimately plastic moulding, meta-foils can be mass manufactured cost-effectively to serve as optical elements.
authors.affiliation: Singapore Synchrotron Light Source (SSLS), National University of Singapore (NUS), 5 Research Link, Singapore 117603. moser@nus.edu.sg
authors.forename: H O
authors.initials: HO
authors.lastname: Moser
authors.forename: L K
authors.initials: LK
authors.lastname: Jian
authors.forename: H S
authors.initials: HS
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Bahou
authors.forename: S M P
authors.initials: SM
authors.lastname: Kalaiselvi
authors.forename: S
authors.initials: S
authors.lastname: Virasawmy
authors.forename: S M
authors.initials: SM
authors.lastname: Maniam
authors.forename: X X
authors.initials: XX
authors.lastname: Cheng
authors.forename: S P
authors.initials: SP
authors.lastname: Heussler
authors.forename: Shahrain
authors.initials: S
authors.lastname: bin Mahmood
authors.forename: B-I
authors.initials: BI
authors.lastname: Wu
mesh_terms: D008027:Light; D008420:Manufactured Materials / Q000032:analysis*; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D012542:Scattering, Radiation; D055053:Terahertz Radiation
chemical_list: D008670:Metals