Radiation hardness of ultrabroadband spintronic terahertz emitters: en-route to a space-qualified terahertz time-domain gas spectrometer

Oliver Gueckstock; Nikola Stojanovic; Yoo Kyung Ha; Till Hagelschuer; Andrea Denker; Giorgious Kourkafas; Tom Seifert; Tobias Kampfrath; Michael Gensch

arXiv · 2401.10672

Radiation hardness of ultrabroadband spintronic terahertz emitters: en-route to a space-qualified terahertz time-domain gas spectrometer

Oliver Gueckstock·Nikola Stojanovic·Yoo Kyung Ha·Till Hagelschuer·Andrea Denker·Giorgious Kourkafas·Tom Seifert·Tobias Kampfrath·Michael Gensch

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Abstract

The radiation hardness of ultrabroadband, spintronic terahertz emitters against gamma and proton irradiation is investigated. We find that irradiation doses equivalent to those experienced by a space instrument en-route to and operated on Mars have a minor effect on the performance of the emitter. In particular, the ultrawide emission spectrum 0.1-30 THz, which covers a large part of the vibrational fingerprint region, remains unchanged. These results make this emitter type highly interesting as essential building block for broad-band gas sensors based on terahertz time-domain spectroscopy for future space missions.

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Oliver Gueckstock, Nikola Stojanovic, Yoo Kyung Ha, Till Hagelschuer, Andrea Denker, Giorgious Kourkafas, Tom Seifert, Tobias Kampfrath, Michael Gensch. 2024-01-19. Radiation hardness of ultrabroadband spintronic terahertz emitters: en-route to a space-qualified terahertz time-domain gas spectrometer. https://arxiv.org/abs/2401.10672

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