Optical Absorption of Plasmonic Nanoparticles in Presence of a Local Interband Transition
Artikel i vetenskaplig tidskrift, 2011

The influences of a local interband transition on optical absorptions of plasmonic nanoparticles are investigated It is found that the optical absorption associated with a local interband transition is remarkably enhanced because of the presence of a localized surface plasmon resonance on the basis of the quasistatic theory, Mie calculations, and the classical models, the electromagnetic interaction of plasmon- and interband-dipole is studied. It is shown that two modes with different characters are generated because of the strong inherent interaction. As a consequence of this interaction; the two modes are repulsed, and an avoided,crossing zone is constructed where the particle plasmon energy coincides with the energy of a local interband transition. The energies of the two modes are interchanged as the crossing zone traversed.

resonance

metals

gold

nanosandwiches

platinum

mechanisms

nanostructures

Författare

Tavakol Pakizeh

Chalmers, Teknisk fysik, Bionanofotonik

Journal of Physical Chemistry C

1932-7447 (ISSN) 1932-7455 (eISSN)

Vol. 115 21826-21831

Ämneskategorier

Annan teknik

DOI

10.1021/jp207413h