activity
20212026
most citedCryogenic integrated spontaneous parametric down-conversion

17 citations · 27 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.mtrl-sci2026

On the temperature dependence of the optical band gap in the material system of lithium niobate and lithium tantalate

Maximilian Henneke, Michael Ruesing, Nina A. Lange +13

Lithium niobate and lithium tantalate see widespread use in optics and electronics, and are increasingly used for cryogenic applications. Despite their broad deployment, their opti…

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

Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides

Nina Amelie Lange, Sebastian Lengeling, Philipp Mues +6

The titanium in-diffused lithium niobate waveguide platform is well-established for reliable prototyping and packaging of many quantum photonic components at room temperature. Neve…

quant-ph2025

Harnessing of temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes

Julian Brockmeier, Timon Schapeler, Nina Amelie Lange +4

Cointegration of heralded single-photon generation and on-chip detection requires the ability to differentiate between pump light and single photons. We explored the dispersion-ind…

quant-ph2024★ 1 cited

Cryogenic Feedforward of a Photonic Quantum State

Frederik Thiele, Niklas Lamberty, Thomas Hummel +8

Modulation conditioned on measurements on entangled photonic quantum states is a cornerstone technology of optical quantum information processing. Performing this task with low lat…

physics.optics2023★ 1 cited

Pyroelectric Influence on Lithium Niobate During the Thermal Transition for Cryogenic Integrated Photonics

Frederik Thiele, Thomas Hummel, Nina Amelie Lange +8

Lithium niobate has emerged as a promising platform for integrated quantum optics, enabling efficient generation, manipulation, and detection of quantum states of light. However, i…

quant-ph2023★ 8 cited

Degenerate Photons from a Cryogenic Spontaneous Parametric Down-Conversion Source

Nina Amelie Lange, Timon Schapeler, Jan Philipp Höpker +2

We demonstrate the generation of degenerate photon pairs from spontaneous parametric down-conversion in titanium in-diffused waveguides in lithium niobate at cryogenic temperatures…

quant-ph2021★ 17 cited

Cryogenic integrated spontaneous parametric down-conversion

Nina Amelie Lange, Jan Philipp Höpker, Raimund Ricken +4

Scalable quantum photonics relies on interfacing many optical components under mutually compatible operating conditions. To that end, we demonstrate that spontaneous parametric dow…