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Fano Resonance in (Gold Core)−(Dielectric Shell) Nanostructures without Symmetry Breaking
Author(s) -
Chen Huanjun,
Shao Lei,
Man Yat Cho,
Zhao Chunmei,
Wang Jianfang,
Yang Baocheng
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201200032
Subject(s) - fano resonance , dielectric , resonance (particle physics) , shell (structure) , plasmon , nanostructure , fano plane , surface plasmon resonance , core (optical fiber) , nanotechnology , condensed matter physics , scattering , materials science , symmetry (geometry) , interference (communication) , physics , nanoparticle , optoelectronics , atomic physics , optics , computer science , telecommunications , pure mathematics , composite material , mathematics , geometry , channel (broadcasting)
A fano resonance is observed in highly symmetric nanostructures comprising Au nanosphere cores and dielectric shells. It arises from the interference between the narrow plasmon resonance of the Au nanosphere core and the broad scattering background of the dielectric shell. The Fano resonance behavior is dependent on the gap distance between the core and shell and the shell material.