title: Transformation optics for cavity array metamaterials.
abstract: Cavity array metamaterials (CAMs), composed of optical microcavities in a lattice coupled via tight-binding interactions, represent a novel architecture for engineering metamaterials. Since the size of the CAMs' constituent elements are commensurate with the operating wavelength of the device, it cannot directly utilise classical transformation optics in the same way as traditional metamaterials. By directly transforming the internal geometry of the system, and locally tuning the permittivity between cavities, we provide an alternative framework suitable for tight-binding implementations of metamaterials. We develop a CAM-based cloak as the case study.
authors.affiliation: Centre for Quantum Computer Technology, School of Physics, The University of Melbourne, Victoria 3010, Australia. quach.james@gmail.com
authors.forename: James Q
authors.initials: JQ
authors.lastname: Quach
authors.forename: Chun-Hsu
authors.initials: CH
authors.lastname: Su
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Greentree