Max Pröpper, M. Sc.

My research areas

■ Production and characterization of thin films

■ THz microscopy

Max Pröpper, M. Sc.

511

+49 531 391 3851

m.proepper(at)tu-braunschweig.de

2025

High-Tc Josephson Junction Arrays Fabricated by He-FIB
Max Pröpper, Dominik Hanisch, Christoph Schmid, Marius Neumann, Paul Julius Ritter, Marc-André Tucholke, Edward Goldobin, Dieter Koelle, Reinhold Kleiner, Meinhard Schilling, Benedikt Hampel
in IEEE Transactions on Applied Superconductivity, vol. 35, no. 5, pp. 1-5, Aug. 2025, Art no. 1100105
doi: 10.1109/TASC.2024.3516741

2024

Model Verification Of U-shaped Antenna Designs For THz Imaging Using Josephson Junctions
Paul Julius Ritter, Marius Neumann, Max Pröpper, Dominik Hanisch, Finn-Niclas Stapelfeldt, Julius Mumme, Meinhard Schilling, Benedikt Hampel
2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Perth, Australia, 2024, pp. 1-2
doi: 10.1109/IRMMW-THz60956.2024.10697863

Superconducting NbTi radiofrequency resonator for surface ion traps
Marjan Schubert, David Fegelein, Dominik Hanisch, Max Pröpper, Meinhard Schilling, Benedikt Hampel
in IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, pp. 1-5, May 2024, Art no. 1100505
doi: 10.1109/TASC.2024.3350588

THz Properties of He-FIB YBa₂Cu₃O_7-x Josephson Junctions
Max Pröpper, Dominik Hanisch, Chistoph Schmid, Paul Julius Ritter, Marius Neumann, Edward Goldobin, Dieter Koelle, Reinhold Kleiner, Meinhard Schilling, Benedikt Hampel
in IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, pp. 1-5, May 2024, Art no. 1100505
doi: 10.1109/TASC.2024.335314

2023

Antenna Designs for Efficient Coupling to Josephson Junctions for THz Microscopy
Paul Julius Ritter, Finn-Niclas Stapelfeldt, Marco Tollkühn, Dominik Hanisch, Max Pröpper, Meinhard Schilling, Benedikt Hampel
IEEE Transactions on Applied Superconductivity 33 (5), 1-52 - 2023
doi: 10.1109/TASC.2023.3249132

High-T_c Josephson Junction Arrays for THz Applications
Dominik Hanisch, Max Pröpper, Paul Julius Ritter, Marco Tollkühn, Meinhard Schilling, Benedikt Hampel
in IEEE Transactions on Applied Superconductivity, vol. 33, no. 5, pp. 1-5, Aug. 2023, Art no. 1501105
doi: 10.1109/TASC.2023.3257285

THz Microscopy With Josephson Cantilevers for Characterization of Additive Manufactured Spiral Phase Plates
Marco Tollkühn, Paul Julius Ritter, Dominik Hanisch, Max Pröpper, Meinhard Schilling, Benedikt Hampel
in IEEE Transactions on Applied Superconductivity, vol. 33, no. 5, pp. 1-5, Aug. 2023, Art no. 2500205,
doi: 10.1109/TASC.2023.3261260

Graduate Theses

Components made from the superconductor YBCO are manufactured and analysed at the institute. A very relevant step in the production of our superconducting samples is the etching of the samples. An ion beam etching system automated with LabVIEW software is used for controlled etching. Various materials such as gold, silver and the superconductor YBCO are etched in several steps. The times required for this are very different for identical parameters. The etching rates for the different materials are to be analysed and determined as part of this work. In addition, the parameters for etching are to be optimised.

Prior knowledge: Enthusiasm for scientific work, careful and independent work

Keywords: Ion beam etching system, etching rates, YBCO

Components made from the superconductor YBCO are manufactured and analysed at the institute. These include Josephson junction (JJ) arrays, i.e. the series connection of several JJs, which are to be used for the Volt standard. Antenna structures are to be provided on the chip in order to improve field coupling. As part of this thesis, the existing antenna structures are to be evaluated and optimised. Subsequently, samples with these antenna structures will be produced and measured under high-frequency irradiation.

Prior knowledge: Enthusiasm for scientific work, careful and independent work

Keywords: simulation, antennas, CST Studio, YBCO

Max Pröpper, M. Sc.

My research areas

Graduate Theses

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