STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference
Abstract
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.
- Authors:
-
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- 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
- Publication Date:
- Research Org.:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- Contributing Org.:
- Univ. of Notre Dame, IN (United States); Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 1327439
- Alternate Identifier(s):
- OSTI ID: 1329042
- Grant/Contract Number:
- SC0010536; CBET-1603780; CHE-1253775; PHY-130045; DGE-1256082
- Resource Type:
- Published Article
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Name: Nano Letters Journal Volume: 16 Journal Issue: 10; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; electron energy-loss spectroscopy; magnetic plasmon oligomers; metamaterials; Fano interference
Citation Formats
Cherqui, Charles, Wu, Yueying, Li, Guoliang, Quillin, Steven C., Busche, Jacob A., Thakkar, Niket, West, Claire A., Montoni, Nicholas P., Rack, Philip D., Camden, Jon P., and Masiello, David J. STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference. United States: N. p., 2016.
Web. doi:10.1021/acs.nanolett.6b03504.
Cherqui, Charles, Wu, Yueying, Li, Guoliang, Quillin, Steven C., Busche, Jacob A., Thakkar, Niket, West, Claire A., Montoni, Nicholas P., Rack, Philip D., Camden, Jon P., & Masiello, David J. STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference. United States. https://doi.org/10.1021/acs.nanolett.6b03504
Cherqui, Charles, Wu, Yueying, Li, Guoliang, Quillin, Steven C., Busche, Jacob A., Thakkar, Niket, West, Claire A., Montoni, Nicholas P., Rack, Philip D., Camden, Jon P., and Masiello, David J. Thu .
"STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference". United States. https://doi.org/10.1021/acs.nanolett.6b03504.
@article{osti_1327439,
title = {STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference},
author = {Cherqui, Charles and Wu, Yueying and Li, Guoliang and Quillin, Steven C. and Busche, Jacob A. and Thakkar, Niket and West, Claire A. and Montoni, Nicholas P. and Rack, Philip D. and Camden, Jon P. and Masiello, David J.},
abstractNote = {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.},
doi = {10.1021/acs.nanolett.6b03504},
journal = {Nano Letters},
number = 10,
volume = 16,
place = {United States},
year = {Thu Sep 29 00:00:00 EDT 2016},
month = {Thu Sep 29 00:00:00 EDT 2016}
}
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https://doi.org/10.1021/acs.nanolett.6b03504
https://doi.org/10.1021/acs.nanolett.6b03504
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Cited by: 21 works
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