EUV light conversion into terahertz pulses

Ultrafast THz monitor of FEL radiation

I. Ilyakov, et al., Optica 9, 545 (2022)
We demonstrate that EUV pulses can be converted into terahertz electromagnetic pulses using a spintronic terahertz emitter. We observe that the duration, arrival time, and energy of each individual EUV pulse is encoded in the waveform of the associated terahertz pulses, and thus can be readily deduced from single-shot terahertz time-domain detection.

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