Plasmonics: Localization and guiding of electromagnetic energy in metal/dielectric structures

Abstract

We review the basic physics of surface-plasmon excitations occurring at metal/dielectric interfaces with special emphasis on the possibility of using such excitations for the localization of electromagnetic energy in one, two, and three dimensions, in a context of applications in sensing and waveguiding for functional photonic devices. Localized plasmon resonances occurring in metallic nanoparticles are discussed both for single particles and particle ensembles, focusing on the generation of confined light fields enabling enhancement of Raman-scattering and nonlinear processes. We then survey the basic properties of interface plasmons propagating along flat boundaries of thin metallic films, with applications for waveguiding along patterned films, stripes, and nanowires. Interactions between plasmonic structures and optically active media are also discussed.

Controllable Cobalt Oxide/Au Hierarchically Nanostructured Electrode for Nonenzymatic Glucose Sensing

“…Localized surface plasmon resonance (LSPR), one of the unique properties associated with noble metal nanoparticles, has been studied extensively [1][2][3][4][5][6][7][8][9][10][11][12]. When metal nanoparticles are exposed to light on resonance with their absorption wavelength, a collective oscillation of electrons in the conduction band takes place [13,14].…”

Fabrication and Replication of Arrays of Single- or Multicomponent Nanostructures by Replica Molding and Mechanical Sectioning

“…These oscillations are known as localized surface plasmon resonances (LSPRs) and propagating surface plasmon polaritons (SPPs) and are responsible for most of the phenomena in the field of plasmonics. 1 Two-and threedimensional arrays of metallic nanostructures could play key roles in functional materials. Optical filters, 2,3 substrates for optical detection of chemical and biological analytes using LSPRs 4 or surface-enhanced Raman scattering (SERS), 5Ϫ7 substrates for enhanced luminosity, 8 materials to augment absorption in thin-film photovoltaic devices, 9,10 metamaterials 11,12 with negative magnetic permeabilities 13 and negative refractive indices, 14 and surfaces for perfect lenses 15 and invisibility cloaking 16 are examples of possible and realized applications.…”

Effect of Co component in Co-Ag granular thin films on visible-light reflection applied by magnetic field

“…has been studied through the phenomenon of giant magneto resistance (GMR). Metal nanoparticles (Au) in the glass have also been known to stimulate surface plasmon (Maier and Atwater, 2005). Ferromagnetic nanoparticles may have magnetic plasmonic phenomenon (spinplasmonic) (Garcia, 2011).…”

“…Ferromagnetic nanoparticles may have magnetic plasmonic phenomenon (spinplasmonic) (Garcia, 2011). Plasmonic materials are more widely used (Maier and Atwater, 2005;Garcia, 2011;Maier, 2007;Wang et al, 2004), as photonic components for optical information technology. On the surface nano-heterojunction, the surface plasmon excitation depends on the spin state density (Chau et al, 2007;Sapienza and Zerulla, 2009).…”