Imaging the Optical near Field in Plasmonic Nanostructures. Issue 12 (December 2014)

• Record Type: Journal Article
• Authors: Merlen, Alexandre; Lagugné-Labarthet, François
• Is Part Of: Applied spectroscopy. Volume 68:Issue 12(2014)
• Page Start: 1307
• Page End: 1326
• Publication Date: 2014-12
• Subjects: Plasmonics -- Metallic nanostructures -- Optical confinement -- Optical near field -- Electron microscopy -- Near-field scanning optical microscopy -- Electron energy loss spectroscopy -- Photoemission electron microscopy -- Nonlinear optics; Spectrum analysis -- Periodicals; 543.505
• DOI: 10.1366/14-07699
• Languages: English
• ISSNs: 0003-7028

Abstract

Over the past five years, new developments in the field of plasmonics have emerged with the goal of finely tuning a variety of metallic nanostructures to enable a desired function. The use of plasmonics in spectroscopy is of course of great interest, due to large local enhancements in the optical near field confined in the vicinity of a metal nanostructure. For a given metal, such enhancements are dependent on the shape of the structure as well as the optical properties (wavelength, phase, polarization) of the impinging light, offering a large degree of control over the optical and spatial localization of the plasmon resonance. In this focal point, we highlight recent work that aims at revealing the spatial position of the localized plasmon resonances using a variety of optical and non-optical methods.