activity
20242026
collaborators

10 papers

physics.optics2026

Cryogenic nonlinear processes in thin-film lithium niobate

Tristan Kuttner, Ulrich Sauter, Robert J. Chapman +6

Photonic integrated circuits operating at cryogenic temperatures are necessary for many quantum technologies such as quantum transduction, integrated single-photon emitters and det…

cs.LG2026

Integrated electro-optic attention nonlinearities for transformers

Luis Mickeler, Kai Lion, Alfonso Nardi +5

Transformers have emerged as the dominant neural-network architecture, achieving state-of-the-art performance in language processing and computer vision. At the core of these model…

physics.optics2026

Solution-derived barium titanate waveguides for integrated electro-optic modulation

Virginia Falcone, Eleni Prountzou, Jost Kellner +2

Metal oxides with strong nonlinear optical properties and wide transparency window are key materials for the development of compact and efficient photonic integrated circuits used…

physics.optics2025

Nanodomain poling unlocking backward nonlinear light generation in thin film lithium niobate

Alessandra Sabatti, Jost Kellner, Robert J. Chapman +1

Nonlinear frequency conversion offers powerful capabilities for applications in telecommunications, signal processing, and computing. Thin-film lithium niobate (TFLN) has emerged a…

quant-ph2025

Scalable quantum interference in integrated lithium niobate nanophotonics

Tristan Kuttner, Alessandra Sabatti, Jost Kellner +2

Photonics has emerged as one of the leading platforms for the implementation of real-world-applicable quantum technologies, enabling secure communication, enhanced sensing capabili…

quant-ph2025

Counter-propagating spontaneous parametric down-conversion source in lithium niobate on insulator

Jost Kellner, Alessandra Sabatti, Tristan Kuttner +2

Quantum photonic technologies rely on the ability to generate, manipulate, and interfere indistinguishable single photons on a scalable platform. Among the various approaches, spon…