73 citations · 455 across the 28 of their papers we have counts for
8 papers · 1 filter
Local temperature control of magnon frequency and direction of supercurrents in a magnon Bose-Einstein condensate
Matthias R. Schweizer, Franziska Kühn, Victor S. L'vov +4
The creation of temperature variations in magnetization, and hence in the frequencies of the magnon spectrum in laser-heated regions of magnetic films, is an important method for s…
Dimensional Crossover in a Quantum Gas of Light
Kirankumar Karkihalli Umesh, Julian Schulz, Julian Schmitt +3
The dimensionality of a system profoundly influences its physical behaviour, leading to the emergence of different states of matter in many-body quantum systems. In lower dimension…
Broadband mode division multiplexing of OAM-modes by a micro printed waveguide structure
Julian Schulz, Georg von Freymann
A light beam carrying orbital angular momentum (OAM) is characterized by a helical phase-front that winds around the center of the beam. These beams have unique properties that hav…
Mixing Rule for Calculating the Effective Refractive Index Beyond the Limit of Small Particles
Dominic T. Meiers, Georg von Freymann
Considering light transport in disordered media, the medium is often treated as an effective medium requiring accurate evaluation of an effective refractive index. Because of its s…
Rapid-prototyping of microscopic thermal landscapes in Brillouin light scattering spectroscopy
Matthias R. Schweizer, Franziska Kühn, Malte Koster +3
Since temperature and its spatial and temporal variations affect a wide range of physical properties of material systems, they can be used to create reconfigurable spatial structur…
Fiber-tip spintronic terahertz emitters
Felix Paries, Nicolas Tiercelin, Geoffrey Lezier +12
Spintronic terahertz emitters promise terahertz sources with an unmatched broad frequency bandwidth that are easy to fabricate and operate, and therefore easy to scale at low cost.…
Coherent and incoherent magnons induced by strong ultrafast demagnetization in thin permalloy films
Anulekha De, Akira Lentfert, Laura Scheuer +4
Understanding spin dynamics on femto- and picosecond timescales offers new opportunities for faster and more efficient spintronic devices. Here, we experimentally investigate the c…
Coherent magnetization dynamics in strongly quenched Ni thin films
Akira Lentfert, Anulekha De, Laura Scheuer +4
The remagnetization process after ultrafast demagnetization can be described by relaxation mechanisms between the spin, electron, and lattice reservoirs. Thereby, collective spin e…