Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session B14: Focus Session: Electrodynamics of Metamaterials
11:15 AM–2:15 PM,
Monday, March 15, 2010
Sponsoring Units: DMP GMAG
Chair: Roberto Merlin, University of Michigan
Abstract ID: BAPS.2010.MAR.B14.13
Abstract: B14.00013 : Switching the Electric and Magnetic Responses in a Metamaterial*
2:03 PM–2:15 PM
Preview Abstract Abstract
(Natl. Lab. Solid State Microstructures, Nanjing UNiversity, Nanjing 210093, China)
The electric and magnetic responses of a system are usually characterized by permittivity and permeability, which depend not only on the intrinsic structure of the material, but also on the polarization of incident light. Yet studies so far concentrate most on finding new geometries to achieve desired electric and magnetic responses, and very few reserches have been done on the role of external excitation fields. We demonstrate in this presentation that in an assembly of stacked metallic U-shaped resonators, pure magnetic and electric responses are realized respectively, and the magnetic and electric responses can be switched at the same frequency by changing the polarization of incident light for 90 degrees. This unique feature originates from the topological symmetry of the structure. We suggest that this property opens a new gateway to construct metamaterial with tunable permittivity and permeability.
*Project supported by NSF of China.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.B14.13
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