Light trapping and guidance in plasmonic nanocrystals

Maxim Sukharev, Tamar Seideman
2007 Journal of Chemical Physics  
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
more » ... e spectrum, introduce overlapping resonances, and hence direct the light in space in a wavelength-sensitive fashion.
doi:10.1063/1.2739537 pmid:17552784 fatcat:fjshureczvbs3kehu4bvdlejra