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arXiv · 2608.24387

Spatio-Temporal Synchronization of Counter-Propagating Femtosecond Pulses

Tamir Cohen·Moshe Fraenkel·Ishay Pomerantz
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Abstract

Generating intense x-ray radiation via inverse-Compton scattering and exploring the strong-field regime of QED, require precise spatio-temporal synchronization of tightly focused counter-propagating intense laser pulses. We present a protocol for establishing spatio-temporal synchronization in this geometry that combines microscope-based target positioning, wavefront-sensor-assisted alignment of off-axis parabolic mirrors, and a high-resolution temporal delay scan based on interference. We observed an interference window of 72 fs in good agreement with the expected autocorrelation width. The accuracy levels in space and time of using this protocol are discussed.

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Tamir Cohen, Moshe Fraenkel, Ishay Pomerantz. 2026-08-25. Spatio-Temporal Synchronization of Counter-Propagating Femtosecond Pulses. https://arxiv.org/abs/2608.24387

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