Cited by 944Terahertz technology and applicationsMagnetic properties of thin filmsLaser-Matter Interactions and Applications

Efficient metallic spintronic emitters of ultrabroadband terahertz radiation

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Seifert, T., Jaiswal, S., Martens, U., Hannegan, J., Braun, L., Maldonado, P., Freimuth, F., Kronenberg, A. +13 more·2016·Nature Photonics

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Crossref · 10.1038/nphoton.2016.91

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  • The electromagnetic pulses from common laser-based THz sources (photoconductive switches, optical rectification, spintronic emitters) are often close to single-cycle in shape.

    “The electromagnetic pulses from common laser-based THz sources, such as photoconductive switches [14, 15], optical rectification [16, 17], and spintronic emitters [18] are often close to single-cycle in shape.”

    From A Tutorial on THz Pulse Analysis: Accurate Retrieval of Pulse Arrival Times, Spectral Energy Density and Absolute Spectral Phase (2025) · cites this paper as [18]

    The spintronic-emitter citation [18] supports the laser-driven, ultrashort-pulse part: the Spintronic THz emitter section (pp. 2–3) describes femtosecond-laser excitation and a broadband, Fourier-limited THz pulse. The Performance test (p. 5) also calls its time-domain signal short, but the available text does not establish that its shape is close to single-cycle. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • Further enhancements in THz emission amplitude can be achieved by tuning the FM layer to maximize the spin-polarization of the conduction electrons, improving interfacial quality, and optimizing the heterostructure geometry to maximize spin-to-charge current conversion.

    “Further enhancements in emission amplitude can be achieved by tuning the FM layer to maximize the spin-polarization of the conduction electrons126, improving interfacial quality121, and optimizing the heterostructure geometry to maximize spin-to-charge current conversion127.”

    From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [127]

    Split into 2 atoms — 1 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 1 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured
  • The spintronic emitter source achieved around 50kV/cm peak electric field (σ = 200 μm, E_pulse = 3.8nJ).

    “The same fs laser and EOS scheme was instead used to determine the THz pulse from a commercial trilayer spintronic emitter [18] from TeraSpinTec, in an optical-pump, THz probe spectrometer [30] that achieved around 50kV/cm peak electric field ( σ = 200 μ m, E pulse = 3 . 8nJ), Fig. 6c.”
  • Seifert et al. first reported ultrabroadband THz pulses from spintronic emitters, found to have close to zero spectral phase over a 30 THz bandwidth, signifying chirp-free (Fourier limited) pulse durations.

    “Ultrabroadband THz pulses from spintronic emitters were first reported by Seifert et al. [18], and were found to have close to zero spectral phase over a 30 THz bandwidth, signifying chirpfree (Fourier limited) pulse durations.”

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Authors
Seifert, T., Jaiswal, S., Martens, U., Hannegan, J., Braun, L., Maldonado, P., Freimuth, F., Kronenberg, A., Henrizi, J., Radu, I., Beaurepaire, E., Mokrousov, Y., Oppeneer, P. M., Jourdan, M., Jakob, G., Turchinovich, D., Hayden, L. M., Wolf, M., Münzenberg, M., Kläui, M., & Kampfrath, T.
Affiliations
  • Fritz Haber Institute of the Max Planck Society (DE)
  • Singulus (Germany) (DE)
  • Universität Greifswald (DE)
  • University of Maryland, Baltimore County (US)
  • Uppsala University (SE)
  • Forschungszentrum Jülich (DE)
  • Johannes Gutenberg University Mainz (DE)
  • Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
  • Institut de Physique et Chimie des Matériaux de Strasbourg (FR)
  • Max Planck Institute for Polymer Research (DE)
Corresponding author
Kampfrath, T.
Venue
Nature Photonics
Published
2016-05-23
Volume
10
Issue
7
Pages
483-488
ISSN
  • 1749-4885 (ISSN-L)
  • 1749-4893
OpenAlex
W2253829922
Cited by
944
References
72
Citations by year
2026: 90 · 2025: 128 · 2024: 107 · 2023: 129 · 2022: 129 · 2021: 105 · 2020: 102 · 2019: 55 · 2018: 64 · 2017: 26 · 2016: 9
FWCI
23.68
Type
journal article
Language
en
Open access
Locations
  • Nature Photonics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Maryland Shared Open Access Repository (USMAI Consortium) (submittedVersion)
  • HAL (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • HZB Repository (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB)) (submittedVersion)
  • PUB – Publications at Bielefeld University (Bielefeld University) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • arXiv (Cornell University)
  • Digital Repository at the University of Maryland (University of Maryland College Park)
Funders
  • European Commission (281043, 280879, 334324, H2020, 608031, 214810, 681917)
  • Max-Planck-Gesellschaft
  • Vetenskapsrådet
  • Samsung
  • Horizon 2020 Framework Programme (608031)
  • European Regional Development Fund (H2020)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Magnetic properties of thin films
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
Keywords
terahertz sources, spintronics, inverse spin Hall effect, Fabry-Perot resonance

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