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EP: Fachverband Extraterrestrische Physik
EP 7: Poster Session
EP 7.1: Poster
Mittwoch, 18. März 2026, 16:15–18:45, Redoutensaal
Towards Ultra-Broadband Terahertz Time-Domain Spectroscopy for Space Research — •Bruno Broer1,2, Dominic Azih1,2, Yookyung Ha2,1, Jonas Woeste1,2, Emma Kinne1,2, Sergey Pavlov2, Oliver Gueckstock3, Tom Seifert3,4, Nikola Stojanovic2, Tobias Kampfrath3,4, and Michael Gensch1,2 — 1Technical University of Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany — 2German Aerospace Center (DLR), Institute of Space Research, Rutherfordstr. 2, 12489 Berlin, Germany — 3Free University Berlin, Arnimallee 14, 14195 Berlin, Germany — 4TeraSpinTec GmbH, Lüneburger Str. 26, 10557 Berlin, Germany
Femtosecond lasers have in recent years been shown to be compact, robust and space qualified, in particular regarding their radiation hardness [1]. This opens up opportunities for compact Terahertz Time-Domain Spectroscopy (THz TDS) systems to detect gases (e.g. CO2) and solids on planetary missions. By avoiding cryogenically cooled direct detectors and bulky opto-mechanics of conventional instruments e,g. in Fourier Transform Infrared systems, THz TDS becomes of high interest for in-situ sensing applications requiring robustness, compactness and high energy/mass efficiency. Here we show our progress en route to a THz TDS setup for space applications with a bandwidth of over 30 THz and a frequency resolution of below 100 GHz.
[1] J. Lee, K. Lee, Y. Jang et al. "Testing of a femtosecond pulse laser in outer space" Scientific Reports 4, 5134 (2014)
Keywords: Time-Domain; Terahertz; Spectroscopy; in-situ; Ultrabroadband