T
Tobias Kampfrath
Researcher at Free University of Berlin
Publications - 165
Citations - 8192
Tobias Kampfrath is an academic researcher from Free University of Berlin. The author has contributed to research in topics: Terahertz radiation & Ultrashort pulse. The author has an hindex of 37, co-authored 147 publications receiving 6122 citations. Previous affiliations of Tobias Kampfrath include University of Konstanz & Fritz Haber Institute of the Max Planck Society.
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Resonant and nonresonant control over matter and light by intense terahertz transients
TL;DR: In this article, the electric and magnetic fields of intense terahertz transients can be used to control matter and light, and the fundamental interaction mechanisms of terrahertz radiation with matter are discussed.
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Coherent terahertz control of antiferromagnetic spin waves
Tobias Kampfrath,Tobias Kampfrath,Tobias Kampfrath,Alexander Sell,Gregor Klatt,Alexej Pashkin,S. Mahrlein,Thomas Dekorsy,Martin Wolf,Manfred Fiebig,Alfred Leitenstorfer,Rupert Huber +11 more
TL;DR: In this paper, the magnetic component of terahertz transients enables ultrafast control of the spin degree of freedom in the NiO at frequencies as high as 1.5 GHz.
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Efficient metallic spintronic emitters of ultrabroadband terahertz radiation
Tom Seifert,Samridh Jaiswal,Samridh Jaiswal,Ulrike Martens,John Hannegan,Lukas Braun,Pablo Maldonado,Frank Freimuth,Alexander Kronenberg,J. Henrizi,Ilie Radu,Eric Beaurepaire,Yuriy Mokrousov,Peter M. Oppeneer,Martin Jourdan,Gerhard Jakob,Dmitry Turchinovich,L. M. Hayden,Martin Wolf,Markus Münzenberg,Mathias Kläui,Tobias Kampfrath +21 more
TL;DR: In this article, a W/CoFeB/Pt trilayer was used to generate a 1.30 THz range of trilayers from photo-induced spin currents, the inverse spin Hall effect and a broadband Fabry-Perot resonance.
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Terahertz spin current pulses controlled by magnetic heterostructures.
Tobias Kampfrath,Marco Battiato,Pablo Maldonado,Gerrit Eilers,Jan Nötzold,S. Mahrlein,Vladyslav Zbarsky,Frank Freimuth,Yuriy Mokrousov,Stefan Blügel,Martin Wolf,Iuliana Radu,Peter M. Oppeneer,Markus Münzenberg +13 more
TL;DR: It is demonstrated, by experiment and theory, that the temporal shape of femtosecond spin current bursts can be manipulated by using specifically designed magnetic heterostructures, which opens the door to engineering high-speed spintronic devices and, potentially, broadband terahertz emitters.
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Strongly coupled optical phonons in the ultrafast dynamics of the electronic energy and current relaxation in graphite
TL;DR: Ultrafast charge carrier dynamics in graphite has been investigated by time-resolved terahertz spectroscopy and analysis of the transient dielectric function and model calculations show that more than 90% of the initially deposited excitation energy is transferred to a few strongly coupled lattice vibrations within 500 fs.