Active resonance tuning of stretchable plasmonic structures

Publication: Research - peer-reviewConference article – Annual report year: 2012

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Active resonance tuning is highly desired for the applications of plasmonic structures, such as optical switches and surface enhanced Raman substrates. In this paper, we demonstrate the active tunable plasmonic structures, which composed of monolayer arrays of metallic semishells with dielectric cores on stretchable elastic substrates. These composite structures support Bragg-type surface plasmon resonances whose frequencies are sensitive to the arrangement of the metallic semishells. Under uniaxial stretching, the lattice symmetry of these plasmonic structures can be reconfigured from hexagonal to monoclinic lattice, leading to not only large but also polarization-dependent shifts of the resonance frequency. The experimental results are supported by the numerical simulations. Our structures fabricated using simple and inexpensive self-assembly and lift-transfer techniques can open up applications of the stretch-tunable plasmonic structures in sensing, switching, and filtering.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication date2012
Volume8457
Pages845742
Number of pages6
ISSN0277-786X
DOIs
StatePublished

Conference

Conference2012 Optics+Photonics : Plasmonics: Metallic Nanostructures and Their Optical Properties X
CountryUnited States
CitySan Diego
Period12/08/1216/08/12
CitationsWeb of Science® Times Cited: 0
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