3 papers
cond-mat.mtrl-sci2024
Lattice dynamics of LiNbTaO solid solutions: Theory and experiment
Felix Bernhardt, Soham Gharat, Alexander Kapp +8
Lithium niobate (LNO) and lithium tantalate (LTO) see widespread use in fundamental research and commercial technologies reaching from electronics over classical optics to integrat…
cond-mat.mtrl-sci2023
Polarization sensitivity in scattering-type scanning near-field optical microscopy -- towards nanoellipsometry
Felix G. Kaps, Susanne C. Kehr, Lukas M. Eng
Electric field enhancement mediated through sharp tips in scattering-type scanning near-field optical microscopy (s-SNOM) enables optical material analysis down to the 10-nm length…
physics.optics2023
Terahertz Twistoptics -- engineering canalized phonon polaritons
Maximilian Obst, Tobias Nörenberg, Gonzalo Álvarez-Pérez +11
The terahertz (THz) frequency range is key to study collective excitations in many crystals and organic molecules. However, due to the large wavelength of THz radiation, the local…