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Optoplasmonic networks with morphology-dependent near- and far-field responses

Published online by Cambridge University Press:  21 December 2015

Wonmi Ahn
Affiliation:
Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA
Xin Zhao
Affiliation:
Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA
Yan Hong
Affiliation:
Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA
Björn M. Reinhard*
Affiliation:
Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA
*
*Address all correspondence to Björn M. Reinhard at bmr@bu.edu
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Abstract

Optoplasmonic networks consisting of dielectric microsphere resonators and plasmonic nanoantennas in a morphologically well-defined on-chip platform support unique electromagnetic signatures that are hybrids of photonic whispering gallery modes and localized surface plasmon resonances. Here we explore the dependence of their near- and far-field responses on the key structural parameters, including the size of the gold nanoparticles forming the plasmonic elements, the separation between the microspheres, and the geometry of the chain. The high degree of structural flexibility, which is experimentally accessible through template guided self-assembly approaches, makes these optoplasmonic structures a unique electromagnetic material for tuning spectral shapes and intensities.

Type
Plasmonics, Photonics, and Metamaterials Research Letters
Copyright
Copyright © Materials Research Society 2015 

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