Spintronic inverse spin hall photomixing beyond 1THz
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)(2023)
摘要
We have demonstrated experimentally how ultrabroadband inverse spin Hall emitters present an unprecedented new scheme for room temperature THz CW and frequency comb generation. Building on previous proof-of-principle demonstrations, we demonstrate here by improved experimental developments how this photomixing effectively does not present any frequency rolloff at least up to 1,05THz, contrary to standard photoswitches. A theoretical and numerical model implementing spin Hall dynamics in nanometric FM/HM stacks predict photomixing bandwidths up to 10THz.
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关键词
ferromagnet-heavy metal stack,frequency comb generation,inverse spin Hall dynamics,multilayers,nanostructured materials,photomixing,photoswitches,roll-off frequency,spintronics,terahertz wave spectra,theoretical model,W-CoFe-Pt/int
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