title: Regenerating evanescent waves from a silver superlens.
abstract: We investigated a precursor of superlensing: regenerating evanescent waves by excitation of a surface plasmon. Because the permittivity of a silver slab approaches -1, we experimentally observed a broadening of surface-plasmon bandwidth. Our study identifies a means to access deep subwavelength features by use of a metamaterial superlens.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Fang
authors.forename: Zhaowei
authors.initials: Z
authors.lastname: Liu
authors.forename: Ta-Jen
authors.initials: TJ
authors.lastname: Yen
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhang