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.