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Electromagnetic field redistribution in hybridized plasmonic particle-film system

Yurui Fang (Institutionen för teknisk fysik, Bionanofotonik) ; Y. Z. Huang
Applied Physics Letters (0003-6951). Vol. 102 (2013), 15, p. artikel nr 153108.
[Artikel, refereegranskad vetenskaplig]

Combining simulation and experiment, we demonstrate that a metal nanoparticle dimer on a gold film substrate can confine more energy in the particle/film gap because of the hybridization of the dimer resonant lever and the continuous state of the film. The hybridization may even make the electric field enhancement in the dimer/film gap stronger than in the gap between particles. The resonant peak can be tuned by varying the size of the particles and the film thickness. This electromagnetic field redistribution has tremendous applications in sensor, photocatalysis and solar cell, etc., especially considering ultrasensitive detection of tracing molecule on substrates.



Denna post skapades 2013-06-17. Senast ändrad 2015-01-12.
CPL Pubid: 178593

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Bionanofotonik (2007-2015)

Ämnesområden

Fysik

Chalmers infrastruktur