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Green's tensor calculations of plasmon resonances of single holes and hole pairs in thin gold films

Joan Alegret (Institutionen för teknisk fysik, Bionanofotonik) ; P. Johansson ; Mikael Käll (Institutionen för teknisk fysik, Bionanofotonik)
New Journal of Physics (1367-2630). Vol. 10 (2008), p. 13.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: EXTRAORDINARY OPTICAL-TRANSMISSION, METAL-FILMS, NANOMETRIC HOLES, STRATIFIED MEDIA, LIGHT, SCATTERING, NANOHOLES, ARRAYS, GRAINS, SHAPE



Denna post skapades 2009-10-26. Senast ändrad 2016-08-19.
CPL Pubid: 100781

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Bionanofotonik (2007-2015)

Ämnesområden

Teknisk fysik

Chalmers infrastruktur