2 papers
physics.optics2026
Magnetic-polarization-dependent spectroscopy of lanthanide-doped anisotropic crystals
Zoe Liestmann, Luca Koldeweyh, Moritz Badtke +3
We experimentally demonstrate that absorption and emission spectra of trivalent lanthanide-doped anisotropic crystals can exhibit a significant magnetic-polarization dependence, wh…
physics.optics2026
Solid-state laser cooling of Yb3+-doped KY3F10 to 145 K
Luca Koldeweyh, Stefan Püschel, Zoe Liestmann +1
We report laser cooling of Yb3+-doped KY3F10 (Yb:KY3F10) driven by a 100-W, 1020-nm pump source. Despite pumping at a non-optimal wavelength, high-quality KY3F10 crystals doped wit…