Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Rene Beigang"'
Publikováno v:
Nanophotonics, Vol 10, Iss 4, Pp 1243-1257 (2020)
The field of THz spintronics is a novel direction in the research field of nanomagnetism and spintronics that combines magnetism with optical physics and ultrafast photonics. The experimental scheme of the field involves the use of femtosecond laser
Autor:
Garik Torosyan, Georg Schmidt, Evangelos Th. Papaioannou, Rene Beigang, Laura Scheuer, Moritz Ruhwedel
Publikováno v:
Spintronics XIII.
The field of THz spintronics is a novel direction in the research field of spintronics that combines magnetism with optical physics and ultrafast photonics. The experimental scheme of the field involves the use of femtosecond laser pulses to trigger
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 23:1-12
In this contribution, an advanced numerical regression approach based on graphics processing unit is introduced. The approach has been applied for real-time terahertz thickness measurements of individual layers within multilayered structures for a va
Autor:
Marco Battiato, Sascha Keller, Marco Rahm, Dennis M. Nenno, Garik Torosyan, Jörg Lösch, Alexander Brodyanski, Rolf Binder, Dominik Sokoluk, Rene Beigang, Evangelos Th. Papaioannou, Laura Scheuer, Hans Christian Schneider
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-16 (2019)
Scientific Reports
Scientific Reports
Spintronic ferromagnetic/non-magnetic heterostructures are novel sources for the generation of THz radiation based on spin-to-charge conversion in the layers. The key technological and scientific challenge of THz spintronic emitters is to increase th
Autor:
Marco Rahm, Rene Beigang, Hideaki Kitahara, Jessica Afalla, Valynn Katrine Mag-usara, Evangelos Th. Papaioannou, Dominik Sokoluk, Joselito Muldera, Masahiko Tani, Laura Scheuer, Garik Torosyan, Miezel Talara
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
A spintronic bilayer structure of 2-nm Fe and 3-nm Pt was fabricated by molecular beam epitaxy on a Silicon substrate. We demonstrate that this Fe/Pt on Si heterostructure is an efficient and convenient alternative terahertz emitter particularly for
Autor:
Miezel Talara, Rene Beigang, Marco Rahm, Dominik Sokoluk, Evangelos Th. Papaioannou, Masahiko Tani, Jessica Afalla, Sascha Keller, Yoshinori Oda, Garik Torosyan, Valynn Katrine Mag-usara, Laura Scheuer, Hideaki Kitahara
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII.
Recent studies in spintronics have highlighted ultrathin magnetic metallic multilayers as a novel and very promising class of broadband terahertz radiation sources. Such spintronic multilayers consist of ferromagnetic (FM) and non-magnetic (NM) thin
Autor:
Mary Clare Sison Escaño, Chiyaka Tachioka, Hideaki Kitahara, Dmitry S. Bulgarevich, Joselito Muldera, Garik Torosyan, Rene Beigang, Miezel Talara, Takashi Furuya, Valynn Katrine Mag-usara, Makoto Watanabe, Masahiko Tani, Qixin Guo, Makoto Nakajima
Publikováno v:
Applied Physics Express. 14:042008
We report on efficient terahertz (THz) wave generation of Fe/Pt diabolo-shaped spintronic antennas with different Pt thicknesses fabricated on MgO substrates. Compared with the antenna-free spintronic bilayer, ∼45% and ∼98% emission amplitude imp
Autor:
Konstantinos Nalpantidis, Frank Platte, Daniel Hübsch, Frank Ellrich, Georg von Freymann, Rene Beigang, Garik Torosyan, Thorsten Sprenger, Korbinian Hens, Daniel Molter, Joachim Jonuscheit
Publikováno v:
Applied Sciences, Vol 11, Iss 950, p 950 (2021)
Applied Sciences
Volume 11
Issue 3
Applied Sciences
Volume 11
Issue 3
One of the most prominent applications of terahertz time-domain spectroscopy is the spectral investigation of materials covered by visibly opaque objects. Therefore, terahertz waves are well suited to inspect the content of mail. We report on our wor
Publikováno v:
Composites Part B: Engineering. 92:315-325
An ultra-high molecular weight polyethylene composite sample has been non-destructively imaged via X-ray and Terahertz waves. The sample stopped a projectile, which resulted in delaminations, a bulge, and a chamber. Although the X-ray computed tomogr
Publikováno v:
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The properties of a three-layer Ta/Fe/Pt spintronic THz emitter based on the inverse spin Hall effect (ISHE) are investigated. Although Ta shows only a very weak ISHE a considerable enhancement of the generated THz amplitude was observed in compariso