activity
20232026
most citedIntegrated, bright, broadband parametric down-conversion source for quantum metrology and spectroscopy

17 citations · 23 across the 6 of their papers we have counts for

collaborators

6 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…

quant-ph2024

Ultra-broadband non-degenerate guided-wave bi-photon source in the near and mid-infrared

Franz Roeder, Abira Gnanavel, René Pollmann +6

The latest applications in ultrafast quantum metrology require bright, broadband bi-photon sources with one of the photons in the mid-infrared and the other in the visible to near…

quant-ph2024★ 17 cited

Integrated, bright, broadband parametric down-conversion source for quantum metrology and spectroscopy

René Pollmann, Franz Roeder, Victor Quiring +4

Broadband quantum light is a vital resource for quantum metrology and spectroscopy applications such as quantum optical coherence tomography or entangled two photon absorption. For…

quant-ph2023★ 6 cited

Measurement of ultrashort bi-photon correlation times with an integrated two-colour broadband SU(1,1)-interferometer

F. Roeder, R. Pollmann, M. Stefszky +7

The bi-photon correlation time, a measure for the conditional uncertainty in the temporal arrival of two photons from a photon pair source, is a key performance identifier for many…