Green's tensor calculations of plasmon resonances of single holes and hole pairs in thin gold films
Artikel i vetenskaplig tidskrift, 2008
We present numerical calculations of the plasmon properties of single-hole and hole-pair structures in optically thin gold films obtained with the Green's tensor formalism for stratified media. The method can be used to obtain the optical properties of a given hole system, without problems associated with the truncation of the infinite metal film. The calculations are compared with previously published experimental data and an excellent agreement is found. In particular, the calculations are shown to reproduce the evolution of the hole plasmon resonance spectrum as a function of hole diameter, film thickness and hole separation.
EXTRAORDINARY OPTICAL-TRANSMISSION
STRATIFIED MEDIA
ARRAYS
NANOMETRIC HOLES
LIGHT
METAL-FILMS
SHAPE
NANOHOLES
GRAINS
SCATTERING
Författare
Joan Alegret
Chalmers, Teknisk fysik, Bionanofotonik
P. Johansson
Örebro universitet
Mikael Käll
Chalmers, Teknisk fysik, Bionanofotonik
New Journal of Physics
1367-2630 (ISSN)
Vol. 10 13- 105004Ämneskategorier
Annan teknik
DOI
10.1088/1367-2630/10/10/105004