• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Compound Hertzian chain model for copper-carbon nanocomposites' absorption spectrum

      Thumbnail
      View / Download
      154.3 Kb
      Author(s)
      Kokabi, A.
      Hosseini, M.
      Saeedi, S.
      Moftakharzadeh, A.
      Vesaghi, M.A.
      Fardmanesh, M.
      Date
      2011
      Source Title
      Micro and Nano Letters
      Print ISSN
      17500443
      Volume
      6
      Issue
      4
      Pages
      277 - 279
      Language
      English
      Type
      Article
      Item Usage Stats
      142
      views
      93
      downloads
      Abstract
      The infrared range optical absorption mechanism of carbon-copper composite thin layer coated on the diamond-like carbon buffer layer has been investigated. By consideration of weak interactions between copper nanoparticles in their network, optical absorption is modelled using their coherent dipole behaviour induced by the electromagnetic radiation. The copper nanoparticles in the bulk of carbon are assumed as a chain of plasmonic dipoles, which have coupling resonance. Considering nearest neighbour interactions for this metallic nanoparticles, surface plasmon resonance frequency (ω 0) and coupled plasmon resonance frequency (ω 1) have been computed. The damping rate against wavelength is derived, which leads to the derivation of the optical absorption spectrum in terms of ω 0 and ω 1. The dependency of the absorption peaks to the particle size and the particle mean spacing is also investigated. The absorption spectrum is measured for different Cu-C thin films with various Cu particle size and spacing. The experimental results of absorption are compared with the obtained analytical ones. © 2011 The Institution of Engineering and Technology.
      Keywords
      Absorption peaks
      Chain models
      Copper nanoparticles
      Coupled plasmon
      Coupling resonance
      Damping rate
      Diamond-like carbon
      Electromagnetic radiation
      Infrared range
      Metallic nanoparticles
      Nearest-neighbour interactions
      Optical absorption
      Optical absorption spectrum
      Plasmonic
      Surface plasmon resonance frequency
      Thin layers
      Weak interactions
      Absorption
      Absorption spectra
      Copper
      Electromagnetic waves
      Light absorption
      Nanocomposite films
      Nanocomposites
      Nanoparticles
      Natural frequencies
      Plasmons
      Surface plasmon resonance
      Thin films
      Absorption spectroscopy
      carbon
      copper
      nanocomposite
      absorption spectroscopy
      article
      dipole
      electromagnetic radiation
      nonhuman
      particle size
      surface plasmon resonance
      terahertz spectroscopy
      Permalink
      http://hdl.handle.net/11693/21964
      Published Version (Please cite this version)
      http://dx.doi.org/10.1049/mnl.2011.0014
      Collections
      • Department of Electrical and Electronics Engineering 3702
      Show full item record

      Related items

      Showing items related by title, author, creator and subject.

      • Thumbnail

        Effect of solvent refractive index on the surface plasmon resonance nanoparticle optical absorption 

        Ertas, G.; Süzer, Şefik (2007)
        Optical properties of plasmon coupled silver and gold nanoparticles were studied as a function of the refractive index of the surrounding medium. Our studies confirmed that the effect of changes in the refractive index of ...
      • Thumbnail

        Universal infrared absorption spectroscopy using uniform electromagnetic enhancement 

        Ayas S.; Bakan, G.; Ozgur E.; Celebi, K.; Dana, A. (American Chemical Society, 2016)
        Infrared absorption spectroscopy has greatly benefited from the electromagnetic field enhancement offered by plasmonic surfaces. However, because of the localized nature of plasmonic fields, such field enhancements are ...
      • Thumbnail

        Plasmonic gratings for enhanced near infrared sensitivity of Silicon based Schottky photodetectors 

        Polat, Kazım Gürkan; Aygun, Levent Erdal; Okyay, Ali Kemal (IEEE, 2011)
        Schottky photodetectors have been intensively investigated due to their high speeds, low device capacitances, and sensitivity in telecommunication standard bands, in the 0.8μm to 1.5μm wavelength range. Due to extreme cost ...

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      LoginRegister

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy