Physics – Optics
Scientific paper
2006-01-09
Physics
Optics
11 pages, 5 figures
Scientific paper
10.1103/PhysRevB.73.085412
We present an analytic theory for the optical properties of ellipsoidal plasmonic particles covered by anisotropic molecular layers. The theory is applied to the case of a prolate spheroid covered by chromophores oriented parallel and perpendicular to the metal surface. For the case that the molecular layer resonance frequency is close to being degenerate with one of the particle plasmon resonances strong hybridization between the two resonances occur. Approximate analytic expressions for the hybridized resonance frequencies, their extinction cross section peak heights and widths are derived. The strength of the molecular - plasmon interaction is found to be strongly dependent on molecular orientation and suggest that this sensitivity could be the basis for novel nanoparticle based bio/chemo-sensing applications.
Ambjornsson Tobias
Apell Peter S.
Käll Mikael
Mukhopadhyay Gautam
No associations
LandOfFree
Resonant coupling between localized plasmons and anisotropic molecular coatings in ellipsoidal metal 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 Resonant coupling between localized plasmons and anisotropic molecular coatings in ellipsoidal metal nanoparticles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant coupling between localized plasmons and anisotropic molecular coatings in ellipsoidal metal nanoparticles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-684259