Maximizing the Electromagnetic Efficiency of Spintronic Terahertz Emitters

IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Photonics Research Pub Date : 2024-11-03 DOI:10.1002/adpr.202470030
Pierre Koleják, Geoffrey Lezier, Daniel Vala, Baptiste Mathmann, Lukáš Halagačka, Zuzana Gelnárová, Yannick Dusch, Jean-François Lampin, Nicolas Tiercelin, Kamil Postava, Mathias Vanwolleghem
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Abstract

Spintronic Terahertz Emitters

In article number 2400064, Mathias Vanwolleghem and co-workers experimentally demonstrate a close to 100-fold improvement of the power efficiency of inverse spin Hall emitters by maximizing the impact of the electromagnetic environment of the nanometric emitter. As a result, by moving from a basic emitter on a bare substrate to one functionalized by a resonant crystal cavity and an impedance matched emitting substrate, the emitted THz field pulses can reach several MV/cm peak strengths without any echo behavior.

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最大化自旋电子太赫兹发射器的电磁效率
自旋电子太赫兹发射器 在编号为 2400064 的文章中,Mathias Vanwolleghem 及其合作者通过实验证明,通过最大限度地利用纳米发射器电磁环境的影响,反自旋霍尔发射器的功率效率提高了近 100 倍。因此,从裸基底上的基本发射器到由谐振晶体腔和阻抗匹配发射基底功能化的发射器,发射的太赫兹场脉冲峰值强度可达到数 MV/cm,且无任何回波行为。
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