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Journal Article

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

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Gückstock,  Oliver       
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Kampfrath,  Tobias       
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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2401.10672.pdf
(Preprint), 965KB

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Citation

Gückstock, O., Stojanovic, N., Ha, Y. K., Hagelschuer, T., Denker, A., Kourkafas, G., et al. (2024). Radiation hardness of ultrabroadband spintronic terahertz emitters: en-route to a space-qualified terahertz time-domain gas spectrometer. Applied Physics Letters, 124(14): 141103. doi:10.1063/5.0196951.


Cite as: https://hdl.handle.net/21.11116/0000-000E-7002-1
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.