Abstract
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 eigenmode spectrum, introduce overlapping resonances, and hence direct the light in space in a wavelength-sensitive fashion.
Original language | English (US) |
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Article number | 204702 |
Journal | Journal of Chemical Physics |
Volume | 126 |
Issue number | 20 |
DOIs | |
State | Published - 2007 |
Funding
This work was supported in part by the NCLT program of the National Science Foundation (ESI-0426328) at the Material Research Institute of Northwestern University. The authors acknowledge the National Energy Research Scientific Computing Center, supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098, and the San Diego Supercomputer Center under Grant No. PHY050001, for computational resources. The authors thank Joseph Yelk for computational assistance.
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry