scholarly journals Surface plasmon modes of a single silver nanorod: an electron energy loss study

2011 ◽  
Vol 19 (16) ◽  
pp. 15371 ◽  
Author(s):  
Olivia Nicoletti ◽  
Martijn Wubs ◽  
N. Asger Mortensen ◽  
Wilfried Sigle ◽  
Peter A. van Aken ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Surface Plasmon ◽  
Electron Energy Loss ◽  
Plasmon Modes

scholarly journals Effect of multipole excitations in electron energy-loss spectroscopy of surface plasmon modes in silver nanowires

2014 ◽  
Vol 116 (22) ◽  
pp. 223101 ◽  
Author(s):  
Xiuli Zhou ◽  
Anton Hörl ◽  
Andreas Trügler ◽  
Ulrich Hohenester ◽  
Theodore B. Norris ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Surface Plasmon ◽  
Electron Energy Loss Spectroscopy ◽  
Silver Nanowires ◽  
Electron Energy Loss ◽  
Plasmon Modes

Surface Plasmons: a Sensitive Diagnostic Tool for Characterizing Interfaces

1985 ◽  
Vol 43 ◽  
pp. 254-255
Author(s):  
M. R. Scheinfein
Keyword(s):  
Dielectric Constant ◽  
Energy Loss ◽  
Surface Plasmons ◽  
Electron Energy ◽  
Surface Plasmon ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Excitation Energies ◽  
Asymptotic Energy ◽  
Electron Energy Loss

There has been considerable interest in characterizing the electronic and chemical properties of interfaces and grain boundries at high spatial resolution. This abstract describes a technique which utilizes the energy dispersion of surface plasmons in the transmission electron energy loss spectrum to evaluate the local dielectric constant variation across interfaces. This technique is shown to yield extremely high spatial resolution.We have been conducting studies of interfaces in a VG HB-5 STEM located at NRRFSS which is equipped with a high resolution electron energy loss analyzer. In STEM, using small probes, a typical surface plasmon excited by 100 keV electrons (Al for example) reaches its asymptotic energy value at a scattering angle between.3 and.4 mr. Since we are convoluting the incident angular distribution with the surface plasmon intensities integrated over a collection aperture, the surface plasmon excitation energies are given by their asymptotic (in k-space) energy values. These asymptotic energy excitations are very sensitive functions of the thickness and dielectric constant [eg, 2-5] of the surrounding medium.

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