Spectral gaps and mode localization in Fibonacci chains of metal nanoparticles | Zendy

Luca Dal Negro | Zendy; Ning-Ning Feng | Zendy

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Spectral gaps and mode localization in Fibonacci chains of metal nanoparticles

Author(s) -

Luca Dal Negro,

Ning-Ning Feng

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.014396

Subject(s) - fibonacci number , nanophotonics , plasmon , dipole , materials science , dispersion (optics) , transfer matrix method (optics) , optics , band diagram , optoelectronics , physics , band gap , quantum mechanics , mathematics , discrete mathematics

In this paper we study the spectral, localization and dispersion properties of dipolar modes in quasi-periodically modulated nanoparticle chains based on the Fibonacci sequence. By developing a transfer matrix approach for the calculation of resonant frequencies, oscillation eigenvectors and integrated density of states (IDS) of spatially-modulated dipole chains, we demonstrate the presence of large spectral gaps and calculate the pseudo-dispersion diagram of Fibonacci plasmonic chains. The presence of plasmonic band-gaps and localized states in metal nanoparticle chains based on quasi-periodic order can have a large impact in the design and fabrication of novel nanophotonics devices.

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