Light trapping and guidance in plasmonic nanocrystals

Details Light trapping and guidance in plasmonic nanocrystals Light trapping and guidance in plasmonic nanocrystals

2006-11-27

arxiv.org/abs/cond-mat/0611685v1

Journal of Chemical Physics 126, 204702 (2007)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1063/1.2739537

We illustrate the possibility of light trapping and funneling in periodic arrays of metallic nanoparticles. A controllable minimum in the transmission spectra of such constructs arises from a collective plasmon resonance phenomenon, where an incident plane wave sharply localizes in the vertical direction, remaining delocalized in the direction parallel to the crystal plane. Using hybrid arrays of different structures or different materials, we apply the trapping effect to structure the eigen-mode spectrum, introduce overlapping resonances, and hence direct the light in space in a wavelength-sensitive fashion.

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