Characterization of Disorder in SRR Metamaterials - PowerPoint PPT Presentation

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Characterization of Disorder in SRR Metamaterials

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Characterization of Disorder in SRR Metamaterials – PowerPoint PPT presentation

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Title: Characterization of Disorder in SRR Metamaterials


1
Characterization of Disorder in SRR Metamaterials
Suggests suppression of left-handed properties
for as little as 5 disorder
2
Experimental Design
Samples 12.5 Ghz 0 - control sample 10.5-11.5
Ghz 9 - 9 different rings 9.5-12.5 Ghz 33 -
20 different rings 8.9-13.1 Ghz 38 - 20
different rings 8.5-13.5 Ghz 45 -20 different
rings
3
Experimental Apparatus
  • ARMS apparatus
  • Experimental range 8.5-18 Ghz
  • Traits
  • small sample size required (symmetric samples
    only)
  • angle resolved measurements

4
RESULTS
Small amounts of disorder dont seem to kill
resonance.
5
Experimental Apparatus
  • Free space horns
  • Experimental range 8-12 Ghz
  • Traits
  • no limitations on sample design
  • high signal loss
  • Large sample required

6
Experimental Apparatus
  • Free space horns
  • Experimental range 12-20 Ghz
  • Traits
  • no limitations on sample design
  • Less signal loss than horns

7
RESULTS
Small amounts of disorder dont seem to kill
resonance.
8
Next step further characterize materials
  • Extract the permeability an permittivity
    functions for these samples in order to better
    characterize their properties
  • Implement the MIT paper for extracting these
    quantities
  • Use existing samples or if
  • necessary make single layered
  • samples.
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