Julius Mumme, M. Sc.

■ THz microscope

■ 3D printing

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2023

Design and Characterization of a Hairpin Filter at GHz Frequencies Using a THz Microscope for Near-Field Analysis
Paul Julius Ritter, Marius Neumann, Julius Mumme, Meinhard Schilling, Benedikt Hampel
48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Montreal, QC, Canada, 2023, pp. 1-2
doi: 10.1109/IRMMW-THz57677.2023.10299026

Near-field Characterization of a GHz Branchline Coupler Using a THz Microscope
Marius Neumann, Paul Julius Ritter, Julius Mumme, Meinhard Schilling, Benedikt Hampel
48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Montreal, QC, Canada, 2023, pp. 1-2
doi: 10.1109/IRMMW-THz57677.2023.10299243

Graduate theses

The emg has developed a THz microscope with which it is possible to measure THz and GHz fields with spatial and frequency resolution. The sensor used is a so-called Josephson contact, which makes it possible to draw conclusions about radiated frequencies and their amplitudes simply by measuring its low-frequency current-voltage characteristic. New measurement electronics were developed to extend the measurement setup. In order to further reduce its noise, an analogue preamplifier is to be designed and tested as part of this thesis which, in contrast to the rest of the electronics, is operated at 40 K to minimise thermal noise.

Keywords: measurement electronics, preamplifier, cryogenic, analogue, low noise

Julius Mumme, M. Sc.

Graduate theses

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