663 citations · 2k across the 15 of their papers we have counts for
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physics.optics2010★ 160 cited
Metamaterial-based gradient index lens with strong focusing in the THz frequency range
Jens Neu, Bernd Krolla, Oliver Paul +3
The development of innovative terahertz (THz) imaging systems has recently moved in the focus of scientific efforts due to the ability to screen substances through textiles or plas…
physics.optics2010★ 99 cited
Gradient Index Metamaterial Based on Slot Elements
Oliver Paul, Benjamin Reinhard, Bernd Krolla +2
We present a gradient-index (GRIN) metamaterial based on an array of annular slots. The structure allows a large variation of the effective refractive index under normal-to-plane i…