3 papers
physics.optics2026
Photorefraction Management in Lithium Niobate Waveguides: High-Temperature vs. Cryogenic Solutions
Nina A. Lange, René Pollmann, Michael Rüsing +7
Lithium niobate sees widespread use in nonlinear and quantum optical devices, such as for sum- and difference-frequency generation or spontaneous parametric down-conversion. In lit…
quant-ph2025
Limitations of Entangled Two-Photon Absorption detection
René Pollmann, Franz Roeder, Christine Silberhorn +1
We introduce a method for determining the sensitivity of any given Entangled Two-Photon Absorption (ETPA) measurement. By modeling all signal and noise contributions to the measure…
quant-ph2025
Towards integrated sensors for optimized OCT with undetected photons
Franz Roeder, René Pollmann, Viktor Quiring +3
The development of practical sensors for optical coherence tomography (OCT) with undetected photons requires miniaturization via integration. To be practical, these sensors must ex…