title: Mode-matching metasurfaces: coherent reconstruction and multiplexing of surface waves.
abstract: Metasurfaces are promising two-dimensional metamaterials that are engineered to provide unique properties or functionalities absent in naturally occurring homogeneous surfaces. Here, we report a type of metasurface for tailored reconstruction of surface plasmon waves from light. The design is based on an array of slit antennas arranged in a way that it matches the complex field distribution of the desired surface plasmon wave. The approach is generic so that one can readily create more intricate designs that selectively generate different surface plasmon waves through simple variation of the wavelength or the polarization state of incident light. The ultra-thin metasurface demonstrated in this paper provides a versatile interface between the conventional free-space optics and a two-dimensional platform such as surface plasmonics.
authors.affiliation: 1] Institute of Micro &Nano Optics, Shenzhen University, Shenzhen, 518060, China [2] School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3001, Australia [3] School of Physics, University of Melbourne, VIC 3010, Australia.
authors.forename: Jiao
authors.initials: J
authors.lastname: Lin
authors.affiliation: Institute of Materials Research and Engineering, A*STAR, Singapore 117602, Singapore.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore 637371, Singapore.
authors.forename: Guanghui
authors.initials: G
authors.lastname: Yuan
authors.affiliation: Institute of Micro &Nano Optics, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Luping
authors.initials: L
authors.lastname: Du
authors.affiliation: School of Physics, University of Melbourne, VIC 3010, Australia.
authors.forename: Shan Shan
authors.initials: SS
authors.lastname: Kou
authors.affiliation: Institute of Micro &Nano Optics, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Xiao-Cong
authors.initials: XC
authors.lastname: Yuan