META Conference, META'12

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Kilohertz magnetic field focusing in a pair of metallic periodic-ladder structures
Debasish Banerjee, J. Lee, E. M. Dede, H. Iizuka

Last modified: 2012-01-28

Abstract


We have shown that when a pair of metallic periodic-ladder structures placed with a central gap, the normally incident magnetic field is focused on a spot of 3 mm(0.6 X 10-5 free space wavelength) full width at half maximum at a 1 mm distance away at 600kHz. The ladder structures are designed by exploiting the curl of the induced current at each unit cell in the periodic structure. In this talk, we will discuss details of analytical and numerical calculation results and progress towards experimental confirmation. This investigation paves the way for kilohertz magnetic field manipulations.