CST – Computer Simulation Technology

Experimental verification of three-dimensional plasmonic cloaking in free-space

Title:
Experimental verification of three-dimensional plasmonic cloaking in free-space
Author(s):
D Rainwater, A Kerkhoff, K Melin, J C Soric, G Moreno
Source:
New Journal of Physics
Vol./Issue/Date:
Volume: 14, Issue: 1, 25 January 2012
Year:
2012
Page(s):
1-13
Abstract:
We report the experimental verification of metamaterial cloaking for a 3D object in free space. We apply the plasmonic cloaking technique, based on scattering cancellation, to suppress microwave scattering from a finite-length dielectric cylinder. We verify that scattering suppression is obtained all around the object in the near- and far-field and for different incidence angles, validating our measurements with analytical results and full-wave simulations. Our nearfield and far-field measurements confirm that realistic and robust plasmonic metamaterial cloaks may be realized for elongated 3D objects with moderate transverse cross-section at microwave frequencies.
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