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      Experimental observation of cavity formation in composite metamaterials

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      Author(s)
      Caglayan H.
      Bulu I.
      Loncar, M.
      Özbay, Ekmel
      Date
      2008
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      16
      Issue
      15
      Pages
      11132 - 11140
      Language
      English
      Type
      Article
      Item Usage Stats
      216
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      138
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      Abstract
      In this paper, we investigated one of the promising applications of left-handed metamaterials: composite metamaterial based cavities. Four different cavity structures operating in the microwave regime were constructed, and we observed cavity modes on the transmission spectrum with different quality factors. The effective permittivity and permeability of the CMM structure and cavity structure were calculated by use of a retrieval procedure. Subsequently, in taking full advantage of the effective medium theory, we modeled CMM based cavities as one dimensional Fabry-Perot resonators with a subwavelength cavity at the center. We calculated the transmission from the Fabry-Perot resonator model using the one-dimensional transfer matrix method, which is in good agreement with the measured result. Finally, we investigated the Fabry-Perot resonance phase condition for a CMM based cavity, in which the condition was satisfied at the cavity frequency. Therefore, our results show that it is possible to treat metamaterial based cavities as one-dimensional Fabry-Perot resonators with a subwavelength cavity. © 2008 Optical Society of America.
      Keywords
      Coordinate measuring machines
      Electronic equipment
      Materials science
      One dimensional
      Resonators
      Transfer matrix method
      Cavity formation
      Cavity frequencies
      Cavity mode (CM)
      Cavity structures
      Composite metamaterial (CMM)
      Composite metamaterials
      Effective medium theory (EMT)
      Effective permittivity
      Experimental observations
      Fabry-Perot (FP) resonators
      Fabry-Perot resonances
      Left-handed metamaterials (LHM)
      Meas ured results
      Metamaterial (MM)
      Microwave regime
      One-dimensional
      Optical society of America (OSA)
      Phase conditions
      Quality factor (Q factor)
      Retrieval (MIR)
      Subwavelength cavity
      Transfer matrix (TM)
      Transmission spectrums
      Fabry-Perot interferometers
      article
      computer simulation
      interferometry
      materials
      methodology
      microwave radiation
      radiation scattering
      theoretical model
      Computer Simulation
      Interferometry
      Manufactured Materials
      Microwaves
      Models, Theoretical
      Scattering, Radiation
      Permalink
      http://hdl.handle.net/11693/23058
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.16.011132
      Collections
      • Department of Electrical and Electronics Engineering 3863
      • Department of Physics 2484
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