3 papers
physics.app-ph2020
The Potential of Combining Thermal Scanning Probes and Phase-Change Materials for Tunable Metasurfaces
Ann-Katrin U. Michel, Sebastian Meyer, Nicolas Essing +5
Metasurfaces allow for the spatiotemporal variation of amplitude, phase, and polarization of optical wavefronts. Implementation of active tunability of metasurfaces promises compac…
cond-mat.mtrl-sci2020
Spectrally-resolved dielectric function of amorphous and crystalline GeTe nanoparticle thin films
Ann-Katrin U. Michel, Marilyne Sousa, Maksym Yarema +5
Phase-change materials (PCMs), which are well-established in optical and random-access memories, are increasingly studied for emerging topics such as brain-inspired computing and a…
physics.optics2019
Optical Fourier surfaces
Nolan Lassaline, Raphael Brechbühler, Sander J. W. Vonk +6
Gratings and holograms are patterned surfaces that tailor optical signals by diffraction. Despite their long history, variants with remarkable functionalities continue to be discov…