Speaker
Description
Accelerator-Based Terahertz (THz) radiation sources[1] open new domains for both physical matter as well as application based research in the Terahertz domain. The generated THz Spectrum as well as its pulse shape is of importance for both, beam line scientists in order to study the beam dynamics[2] as well as for the experimental scientists in order to use THz signals for numerous studies.
Various cryogenic and room-temperature based detection technologies for THz signals are available for medium and high power THz signals. The detectors can be subdivided into heterodyne (mixing) and homodyne (direct detection). For several applications, broadband room-temperature Terahertz detectors are well suitable for beam diagnosis and alignment at accelerator facilities due to easy handling, compact size, direct detection and robustness [3,4]. Zero-Bias Schottky Diode (ZBSD) based detectors are highly sensitive and extremely fast, enabling detection of picosecond scale THz pulses.
In this work, we present a brief overview of various types of THz detector technologies available for beam diagnostic and beam dynamic studies. Along with that we will show the latest results of THz detectors developed by our research group. Future development prospects of the detector will be discussed in the outlook section.
The work is supported by the German Federal Ministry of Education and Research (BMBF) under contract no. 05K22RO1..
References:
[1] Müller, Anke-Susanne, and Markus Schwarz. "Accelerator-based THz radiation sources." Synchrotron Light Sources and Free-Electron Lasers: Accelerator Physics, Instrumentation and Science Applications (2020): 83-117.
[2] Steinmann, Johannes Leonhard. Diagnostics of short electron bunches with THz detectors in particle accelerators. KIT Scientific Publishing, 2019.
[3] Yadav, Rahul, et al. "State-of-the-Art Room Temperature Operable Zero-Bias Schottky Diode-Based Terahertz Detector Up to 5.56 THz." Sensors 23.7 (2023): 3469.
[4] Preu, Sascha, et al. "THz autocorrelators for ps pulse characterization based on Schottky diodes and rectifying field-effect transistors." IEEE Transactions on Terahertz Science and Technology 5.6 (2015): 922-929.
