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      Plasmonic band gap structures for surface-enhanced Raman scattering

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      Author(s)
      Kocabas, A.
      Ertas G.
      Senlik, S.S.
      Aydınlı, Atilla
      Date
      2008
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      16
      Issue
      17
      Pages
      12469 - 12477
      Language
      English
      Type
      Article
      Item Usage Stats
      318
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      184
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      Abstract
      Surface-enhanced Raman Scattering (SERS) of rhodamine 6G (R6G) adsorbed on biharmonic metallic grating structures was studied. Biharmonic metallic gratings include two different grating components, one acting as a coupler to excite surface plasmon polaritons (SPP), and the other forming a plasmonic band gap for the propagating SPPs. In the vicinity of the band edges, localized surface plasmons are formed. These localized Plasmons strongly enhance the scattering efficiency of the Raman signal emitted on the metallic grating surfaces. It was shown that reproducible Raman scattering enhancement factors of over 10 5 can be achieved by fabricating biharmonic SERS templates using soft nano-imprint technique. We have shown that the SERS activities from these templates are tunable as a function of plasmonic resonance conditions. Similar enhancement factors were also measured for directional emission of photoluminescence. At the wavelengths of the plasmonic absorption peak, directional enhancement by a factor of 30 was deduced for photoluminescence measurements. © 2008 Optical Society of America.
      Keywords
      Diffraction gratings
      Energy gap
      Gallium alloys
      Metallic soaps
      Optical data storage
      Plasmons
      Scattering
      Surface plasmon resonance
      Band edges
      Band gaps
      Bi-harmonic
      Enhancement factors
      Grating components
      Localized surface plasmons
      Metallic gratings
      Plasmonic band gap structures
      Raman signals
      Rhodamine 6G
      Scattering efficiencies
      Surface-enhanced raman scattering
      Surface-plasmon polaritons
      Raman scattering
      rhodamine
      rhodamine 6G
      article
      chemistry
      equipment
      equipment design
      instrumentation
      light
      radiation scattering
      Raman spectrometry
      refractometry
      surface plasmon resonance
      Equipment Design
      Equipment Failure Analysis
      Light
      Refractometry
      Rhodamines
      Scattering, Radiation
      Spectrum Analysis, Raman
      Surface Plasmon Resonance
      Permalink
      http://hdl.handle.net/11693/23033
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.16.012469
      Collections
      • Department of Chemistry 677
      • Department of Physics 2485
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