Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-06-05
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages; E-mail address: physdep@seua.am
Scientific paper
10.1007/s00340-004-1403-z
Two possible mechanisms of surface plasmon (SP) oscillations damping in metallic nanoparticles (MNPs), not connected with electron-phonon interaction are investigated theoretically: a) the radiation damping of SP, b) resonant coupling of SP oscillations with electronic transitions in matrix. It is shown that the radiation damping rate is proportional to the number of electrons in MNP and therefore this channel of energy outflow from MNP becomes essential for relatively large particles. The investigation of second mechanism shows that the rate of SP oscillations energy leakage from MNP dos not depend on particle size and is fully determined by the optical characteristics of the matrix. It is demonstrated that for very small MNPs of 3-5 nm size, where the strong 3D size quantization effect suppresses the electron-phonon interaction, the resonance coupling in certain cases provides an effective energy outflow.
Melikyan Armen
Minassian Hayk
No associations
LandOfFree
On Surface Plasmon Damping in Metallic Nanoparticles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On Surface Plasmon Damping in Metallic Nanoparticles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Surface Plasmon Damping in Metallic Nanoparticles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-23678