M
Marco Rahm
Researcher at Kaiserslautern University of Technology
Publications - 93
Citations - 4496
Marco Rahm is an academic researcher from Kaiserslautern University of Technology. The author has contributed to research in topics: Terahertz radiation & Metamaterial. The author has an hindex of 24, co-authored 86 publications receiving 4181 citations. Previous affiliations of Marco Rahm include Fraunhofer Society & Duke University.
Papers
More filters
Journal ArticleDOI
Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell’s equations
TL;DR: In this article, a square electromagnetic cloak and an omni-directional electromagnetic field concentrator are described and the functionality of the devices is numerically confirmed by two-dimensional finite element simulations.
Journal ArticleDOI
Optical design of reflectionless complex media by finite embedded coordinate transformations.
TL;DR: This work applies finite, embedded coordinate transformations to the design of several devices, including a parallel beam shifter and a beam splitter, both of which are reflectionless and exhibit unusual electromagnetic behavior as confirmed by 2D full-wave simulations.
Journal ArticleDOI
Scattering Theory Derivation of a 3D Acoustic Cloaking Shell
Steven A. Cummer,Bogdan Ioan Popa,David Schurig,David R. Smith,John B. Pendry,Marco Rahm,Anthony F. Starr +6 more
TL;DR: Through acoustic scattering theory, the mass density and bulk modulus of a spherical shell that can eliminate scattering from an arbitrary object in the interior of the shell are derived--in other words, a 3D acoustic cloaking shell.
Journal ArticleDOI
Transformation-optical design of adaptive beam bends and beam expanders
TL;DR: The design of adaptive beam bends and beam splitters with arbitrary bend and split angles by use of finite embedded coordinate transformations are described and it is observed that a pure transformation-optical design cannot result in a reflectionless beam expander/compressor.
Journal ArticleDOI
THz Wave Modulators: A Brief Review on Different Modulation Techniques
TL;DR: In this article, the authors discuss various approaches for electronic, optical, thermal and nonlinear modulation in distinct material systems such as semiconductors, graphene, pho- tonic crystals and metamaterials.