Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm-1 from a metallic spintronic emitter

被引：175

作者：

Seifert, T. ^{[1
]}

Jaiswal, S. ^{[2
,3
]}

Sajadi, M. ^{[1
]}

Jakob, G. ^{[2
]}

Winnerl, S. ^{[4
]}

Wolf, M. ^{[1
]}

Klaeui, M. ^{[2
]}

Kampfrath, T. ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, Dept Phys Chem, D-14195 Berlin, Germany

[2] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[3] Singulus Technol AG, D-63796 Kahl, Germany

[4] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 25期

基金：

欧洲研究理事会;

关键词：

GENERATION; MATTER; LIGHT;

D O I：

10.1063/1.4986755

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We explore the capabilities of metallic spintronic thin-film stacks as a source of intense and broadband terahertz electromagnetic fields. For this purpose, we excite a W/CoFeB/Pt trilayer (thickness of 5.6 nm) on a large-area glass substrate (diameter of 7.5 cm) by a femtosecond laser pulse (energy 5.5 mJ, duration 40 fs, and wavelength 800 nm). After focusing, the emitted terahertz pulse is measured to have a duration of 230 fs, a peak field of 300 kV cm(-1), and an energy of 5 nJ. In particular, the waveform exhibits a gapless spectrum extending from 1 to 10 THz at 10% of its amplitude maximum, thereby facilitating nonlinear control over matter in this difficult-to-reach frequency range on the sub-picosecond time scale. Published by AIP Publishing.

引用

页数：5

共 25 条

[1] Ultrabroadband perfect imaging in terahertz wire media using single-cycle pulses
Kaltenecker, Korbinian J.
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OPTICA, 2016, 3 (05): : 458 - 464
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SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2025, 26 (01)
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Vicario, C.
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ULTRAFAST PHENOMENA XIX, 2015, 162 : 609 - 611
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Junginger, F.
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Leitenstorfer, A.
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OPTICS LETTERS, 2010, 35 (15) : 2645 - 2647
[5] Single-cycle terahertz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3
Hirori, H.
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APPLIED PHYSICS LETTERS, 2011, 98 (09)
[6] Intense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap
Vicario, C.
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SCIENTIFIC REPORTS, 2015, 5
[7] Intense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap
C. Vicario
B. Monoszlai
M. Jazbinsek
S. -H. Lee
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C. P. Hauri
Scientific Reports, 5
[8] Ionization from Rydberg atoms and wave packets by scaled terahertz single-cycle pulses
Wang, Xiao
Robicheaux, F.
PHYSICAL REVIEW A, 2019, 99 (03)
[9] High-energy electron emission from metallic nano-tips driven by intense single-cycle terahertz pulses
Sha Li
R. R. Jones
Nature Communications, 7
[10] High-energy electron emission from metallic nano-tips driven by intense single-cycle terahertz pulses
Li, Sha
Jones, R. R.
NATURE COMMUNICATIONS, 2016, 7

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