skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference

Journal Article · · Nano Letters
;  [1];  [2]; ; ; ; ; ;  [3];  [2];
  1. Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
  2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
  3. Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
+ Show Author Affiliations

Negative-index metamaterials composed of magnetic plasmon oligomers are actively being investigated for their potential role in optical cloaking, superlensing, and nanolithography applications. A significant improvement to their practicality lies in the ability to function at multiple distinct wavelengths in the visible part of spectrum. Here we utilize the nanometer spatial-resolving power of electron energy-loss spectroscopy to conclusively demonstrate hybridization of magnetic plasmons in oligomer dimers that can achieve this goal. We also show that breaking the dimer’s symmetry can induce all-magnetic Fano interferences based solely on the interplay of bright and dark magnetic modes, allowing us to further tailor the system’s optical responses. These features are engineered through the design of the oligomer’s underlying nanoparticle elements as elongated Ag nanodisks with spectrally isolated long-axis plasmon resonances. The resulting magnetic plasmon oligomers and their hybridized assemblies establish a new design paradigm for optical metamaterials with rich functionality.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Contributing Organization:
Univ. of Notre Dame, IN (United States); Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Grant/Contract Number:
SC0010536; CBET-1603780; CHE-1253775; PHY-130045; DGE-1256082
OSTI ID:
1327439
Alternate ID(s):
OSTI ID: 1329042
Journal Information:
Nano Letters, Journal Name: Nano Letters Vol. 16 Journal Issue: 10; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

References (38)

A subwavelength plasmonic metamolecule exhibiting magnetic-based optical Fano resonance journal January 2013
Plasmon Modes of Nanosphere Trimers and Quadrumers journal June 2006
Plasmonic Oligomers: The Role of Individual Particles in Collective Behavior journal February 2011
Interplay Between Optical Bianisotropy and Magnetism in Plasmonic Metamolecules journal June 2016
Signatures of Fano Interferences in the Electron Energy Loss Spectroscopy and Cathodoluminescence of Symmetry-Broken Nanorod Dimers journal April 2013
Self-Assembled Plasmonic Nanoparticle Clusters journal May 2010
Combined Tight-Binding and Numerical Electrodynamics Understanding of the STEM/EELS Magneto-optical Responses of Aromatic Plasmon-Supporting Metal Oligomers journal September 2014
Manipulating Magnetic Plasmon Propagation in Metallic Nanocluster Networks journal May 2012
Heterodimers: Plasmonic Properties of Mismatched Nanoparticle Pairs journal January 2010
Magnetic dipole based systems for probing optical magnetism journal April 2008
MNPBEM – A Matlab toolbox for the simulation of plasmonic nanoparticles journal February 2012
Negative effective permeability and left-handed materials at optical frequencies journal January 2006
Excitation of Magnetic Dipole Transitions at Optical Frequencies journal April 2015
The dark side of the ring journal January 2013
Transition from Isolated to Collective Modes in Plasmonic Oligomers journal July 2010
Spatially Mapping Energy Transfer from Single Plasmonic Particles to Semiconductor Substrates via STEM/EELS journal April 2015
Excitation dependent Fano-like interference effects in plasmonic silver nanorods journal October 2014
Magnetic Plasmon Propagation Along a Chain of Connected Subwavelength Resonators at Infrared Frequencies journal December 2006
Metamagnetics with rainbow colors journal January 2007
Magnetic Plasmon Formation and Propagation in Artificial Aromatic Molecules journal December 2011
Dynamical theory of artificial optical magnetism produced by rings of plasmonic nanoparticles journal August 2008
Imaging Plasmon Hybridization in Metal Nanoparticle Aggregates with Electron Energy-Loss Spectroscopy journal May 2016
Optically controlled magnetic-field etching on the nano-scale journal March 2016
Spectral Tuning by Selective Enhancement of Electric and Magnetic Dipole Emission journal May 2011
DNA-assembled bimetallic plasmonic nanosensors journal December 2014
Dark and bright mode hybridization: From electric to magnetic Fano resonances journal January 2016
Characterizing Localized Surface Plasmons Using Electron Energy-Loss Spectroscopy journal May 2016
Raspberry-like Metamolecules Exhibiting Strong Magnetic Resonances journal January 2015
Magnetic Plasmonic Fano Resonance at Optical Frequency journal January 2015
Strong enhancement of magnetic dipole emission in a multilevel electronic system journal January 2010
DNA-Assembled Nanoparticle Rings Exhibit Electric and Magnetic Resonances at Visible Frequencies journal January 2015
Electron Energy Loss Spectroscopy Investigation into Symmetry in Gold Trimer and Tetramer Plasmonic Nanoparticle Structures journal August 2016
Interplay of Magnetic Responses in All-Dielectric Oligomers To Realize Magnetic Fano Resonances journal May 2015
Magnetic plasmon hybridization and optical activity at optical frequencies in metallic nanostructures journal August 2007
Collective electric and magnetic plasmonic resonances in spherical nanoclusters journal January 2011
Binary and Ternary Superlattices Self-Assembled from Colloidal Nanodisks and Nanorods journal May 2015
Controlling the Interplay of Electric and Magnetic Modes via Fano-like Plasmon Resonances journal September 2011
Optical negative-index metamaterials journal January 2007

Similar Records

Related Subjects

36 MATERIALS SCIENCE
electron energy-loss spectroscopy
magnetic plasmon oligomers
metamaterials
Fano interference