title: Plasmons in nanoscale and atomic-scale systems.
abstract: Plasmons in metallic nanomaterials exhibit very strong size and shape effects, and thus have recently gained considerable attention in nanotechnology, information technology, and life science. In this review, we overview the fundamental properties of plasmons in materials with various dimensionalities and discuss the optical functional properties of localized plasmon polaritons in nanometer-scale to atomic-scale objects. First, the pioneering works on plasmons by electron energy loss spectroscopy are briefly surveyed. Then, we discuss the effects of atomistic charge dynamics on the dispersion relation of propagating plasmon modes, such as those for planar crystal surface, atomic sheets and straight atomic wires. Finally, standing-wave plasmons, or antenna resonances of plasmon polariton, of some widely used nanometer-scale structures and atomic-scale wires (the smallest possible plasmonic building blocks) are exemplified along with their applications.
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Tadaaki
authors.initials: T
authors.lastname: Nagao
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Gui
authors.initials: G
authors.lastname: Han
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan; Kirchhoff Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, D 69120, Heidelberg, Germany.
authors.forename: ChungVu
authors.initials: C
authors.lastname: Hoang
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Jung-Sub
authors.initials: JS
authors.lastname: Wi
authors.affiliation: Kirchhoff Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, D 69120, Heidelberg, Germany.
authors.forename: Annemarie
authors.initials: A
authors.lastname: Pucci
authors.affiliation: Kirchhoff Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, D 69120, Heidelberg, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Weber
authors.affiliation: Kirchhoff Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, D 69120, Heidelberg, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Neubrech
authors.affiliation: Depto de Física de Materiales, Facultad de Ciencias Quimicas, Universidad del Pais Vasco, Apdo. 1072, 20080 San Sebastian/Donostia, Spain; Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastian/Donostia, Spain; IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain.
authors.forename: Vyacheslav M
authors.initials: VM
authors.lastname: Silkin
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Dominik
authors.initials: D
authors.lastname: Enders
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Saito
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
authors.forename: Masud
authors.initials: M
authors.lastname: Rana
keywords: nanoparticle; nanorod; nanowire; plasmon; sensing