Title:
Excitation of propagating surface plasmons by a periodic nanoparticle array: Trade-off between particle-induced near-field excitation and damping
Author(s):
Amitabh Ghoshala, Pieter G. Kikb
Source:
APPLIED PHYSICS LETTERS
Vol./Issue/Date:
Year:
2009
Page(s):
Keywords:
Abstract:
The excitation of propagating surface plasmons SPs on a silver-silica interface by an array of ellipsoidal silver nanoparticles is investigated using numerical simulations as a function of particle
volume for three different nanoparticle aspect ratios with representative resonance frequencies. We find that while the SP amplitude depends sensitively on particle volume for each selected aspect ratio, the maximum SP amplitude obtained for the different particle shapes is remarkably similar. These observations are explained in terms of particle-mediated SP excitation, counteracted by a size dependent particle-induced damping. An analytical model is presented that quantitatively describes the observed trends in SP damping
Document:
Reference Id:
589
Back to References
Please note that this is a collection of external publications.
CST respects the copyrights of the respective owners and as such can not distribute said publications.
Details of copyright ownership is provided to the best of our knowledge. Please contact the given references for further information.