Document Detail

Dipole, quadrupole and octupole plasmon resonance modes in non-concentric nanocrescent/nanodisk structure: local field enhancement in the visible and near infrared regions.
MedLine Citation:
PMID:  22330530     Owner:  NLM     Status:  In-Data-Review    
By deviating the nanodisk from the center in the silver nanocrescent/nanodisk structure, we find that the dipole, quadrupole and octupole modes can all induce very high local electric field enhancement (LFE, more than 750) for the coupling of nanocrescent and crescent gap modes, which makes the resonant wavelengths of the non-concentric nanostructures change from the visible to near infrared regions. In addition, the LFE factor of the quadrupole mode is more than 1000, which is suitable for single molecular detection by local surface enhanced spectroscopy.
Y Zhang; T Q Jia; S A Zhang; D H Feng; Z Z Xu
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-02-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2924-31     Citation Subset:  IM    
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