160 citations · 524 across the 7 of their papers we have counts for
7 papers
Flat-face approximations of invisibility cloaks with planar metamaterial layers
Oliver Paul, Yaroslav Urzhumov, Christoffer Elsen +2
Transformation optics (TO) is a powerful tool for the design of artiffcial materials with unprecedented optical properties. Here, we propose the approximation of TO structures of a…
Covariant Description of Transformation Optics in Linear and Nonlinear Media
Oliver Paul, Marco Rahm
The technique of transformation optics (TO) is an elegant method for the design of electromagnetic media with tailored optical properties. In this paper, we focus on the formal str…
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…
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…
Experimental and numerical studies of terahertz surface waves on a thin metamaterial film
Benjamin Reinhard, Oliver Paul, Rene Beigang +1
We present experimental and numerical studies of localized terahertz surface waves on a subwavelength-thick metamaterial film consisting of in-plane split-ring resonators. A simple…
Highly Selective Terahertz Bandpass Filters Based on Trapped Mode Excitation
Oliver Paul, Rene Beigang, Marco Rahm
We present two types of metamaterial-based spectral bandpass filters for the terahertz (THz) frequency range. The metamaterials are specifically designed to operate for waves at no…