Document Detail


Polarization-dependent multipolar plasmon resonances in anisotropic multiscale au particles.
MedLine Citation:
PMID:  22276641     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
This paper reports the fabrication and characterization of three-dimensional (3D) multiscale Au particles with different aspect ratios. Increasing the length of the particles resulted in excitation of a longitudinal mode and two different transverse modes having different multipolar orders. The multipolar orders increased for both longitudinal and transverse modes as the aspect ratio increased. Finite-difference time-domain calculations revealed that the structural asymmetry of the 3D anisotropic particles were the reason for the two distinct transverse plasmon resonances. When the 3D structural change occurred at the ends of the multiscale particle, however, the optical response showed two resonances in the longitudinal direction and only a single resonance in the transverse direction.
Authors:
Eun-Ah You; Wei Zhou; Jae Yong Suh; Mark D Huntington; Teri W Odom
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2012-01-25
Journal Detail:
Title:  ACS nano     Volume:  6     ISSN:  1936-086X     ISO Abbreviation:  ACS Nano     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-02-28     Completed Date:  2012-06-19     Revised Date:  2013-04-15    
Medline Journal Info:
Nlm Unique ID:  101313589     Medline TA:  ACS Nano     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1786-94     Citation Subset:  -    
Affiliation:
Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.
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Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
1U54CA143869-01/CA/NCI NIH HHS; U54 CA143869/CA/NCI NIH HHS; U54 CA143869-02/CA/NCI NIH HHS
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