fulltext.study @t Gmail

The simplest plasmonic molecules: Metal nanoparticle dimers and trimers

Paper ID Volume ID Publish Year Pages File Format Full-Text
31267 44727 2014 14 PDF Available
Title
The simplest plasmonic molecules: Metal nanoparticle dimers and trimers
Abstract

•The simplest plasmonic molecule (PM) is a cluster of 2–3 metal particles.•PMs can be generated by solution chemistry or nanofabrication.•Electromagnetic hot spots in their gaps enhance Raman scattering or fluorescence.•Symmetry of a PM affects its excitations, which can be classified by group theory.•PMs can serve as antennas, sensors or quantum cavities interacting with molecules.

This review discusses research on the plasmonic properties of small clusters of metal nanoparticles, with two and three particles. These are the simplest examples of ‘plasmonic molecules’. Coupling between two particles leads to new surface plasmon resonances and to the creation of a hot spot of a strong electric field in the gap between the particles. Such a hot spot can be used to enhance Raman scattering or fluorescence, making plasmonic dimers useful for applications in spectroscopy and sensing. Trimers offer a richer spectrum of options for coupling between particles, which can be analyzed using group theory to obtain the plasmonic modes, in analogy to vibrational modes. Symmetry plays an important role in our understanding of the physics of plasmonic dimers and trimers, and new physical phenomena may appear when the symmetry of a dimer or a trimer is broken, including directional emission, Fano resonances, plane chirality and more. The review introduces some of these concepts, the basic physics behind them and their possible applications. Focus Point sections describing selected outstanding recent developments accompany the review.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Surface plasmon resonance; Surface-enhanced Raman; Plasmon modes; Symmetry breaking; Nanofabrication
First Page Preview
The simplest plasmonic molecules: Metal nanoparticle dimers and trimers
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 21, December 2014, Pages 26–39
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us