Rigorous signal reconstruction in terahertz emission spectroscopy

Zhang W, Turchinovich D (2021)
Optics Express 29(15): 24411-24421.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Terahertz (THz) emission spectroscopy is a powerful method that allows one to measure the ultrafast dynamics of polarization, current, or magnetization in a material based on THz emission from the material. However, the practical implementation of this method can be challenging, and can result in significant errors in the reconstruction of the quantity of interest. Here, we experimentally and theoretically demonstrate a rigorous method of signal reconstruction in THz emission spectroscopy, and describe the main experimental and theoretical sources of reconstruction error. We identify the linear line-of-sight geometry of the THz emission spectrometer as the optimal configuration for accurate, fully calibrated THz signal reconstruction. As an example, we apply our reconstruction method to ultrafast THz magnetometry experiment, where we recover the ultrafast magnetization dynamics in a photoexcited iron film, including both its temporal shape and absolute magnitude. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Erscheinungsjahr
2021
Zeitschriftentitel
Optics Express
Band
29
Ausgabe
15
Seite(n)
24411-24421
ISSN
1094-4087
Page URI
https://pub.uni-bielefeld.de/record/2957030

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Zhang W, Turchinovich D. Rigorous signal reconstruction in terahertz emission spectroscopy. Optics Express. 2021;29(15):24411-24421.
Zhang, W., & Turchinovich, D. (2021). Rigorous signal reconstruction in terahertz emission spectroscopy. Optics Express, 29(15), 24411-24421. https://doi.org/10.1364/OE.431739
Zhang, W., and Turchinovich, D. (2021). Rigorous signal reconstruction in terahertz emission spectroscopy. Optics Express 29, 24411-24421.
Zhang, W., & Turchinovich, D., 2021. Rigorous signal reconstruction in terahertz emission spectroscopy. Optics Express, 29(15), p 24411-24421.
W. Zhang and D. Turchinovich, “Rigorous signal reconstruction in terahertz emission spectroscopy”, Optics Express, vol. 29, 2021, pp. 24411-24421.
Zhang, W., Turchinovich, D.: Rigorous signal reconstruction in terahertz emission spectroscopy. Optics Express. 29, 24411-24421 (2021).
Zhang, Wentao, and Turchinovich, Dmitry. “Rigorous signal reconstruction in terahertz emission spectroscopy”. Optics Express 29.15 (2021): 24411-24421.

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