247 citations · 2k across the 36 of their papers we have counts for
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physics.optics2014★ 46 cited
The resonant dynamics of arbitrarily-shaped meta-atoms
David A. Powell
Meta-atoms, nano-antennas, plasmonic particles and other small scatterers are commonly modeled in terms of their modes. However these modal solutions are seldom determined explicit…
physics.optics2014★ 72 cited
Broadband chiral metamaterials with large optical activity
Kirsty Hannam, David A. Powell, Ilya V. Shadrivov +1
We study theoretically and experimentally a novel type of metamaterial with hybrid elements composed of twisted pairs of cross-shaped meta-atoms and their complements. We reveal th…