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arXiv · 2412.12927

Self-compression of 5-$\mu$m pulses in hollow waveguides

Martin Bock·Usman Sapaev·Ji Eun Bae·Anton Husakou·Joachim Herrmann·Tamas Nagy·Uwe Griebner
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Abstract

We experimentally and numerically investigate self-compression of pulses around 5 $\mu$m wavelength in a noble-gas-filled hollow waveguides. We demonstrate spectral broadening of multi-mJ pulses at 4.9 $\mu$m and associated pulse compression from 85 fs to 47 fs in the solitonic pulse compression regime. The self-compression resulted in sub-three-cycle pulses with 17 GW peak power in the 1-kHz pulse train. A numerical model is established and benchmarked against the experimental results. It allows further insights into the pulse compression process, such as scaling of the compression as a function of gas pressure and waveguide radius, and predicts pulse compression in sub-cycle regime for realistic input parameters.

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Martin Bock, Usman Sapaev, Ji Eun Bae, Anton Husakou, Joachim Herrmann, Tamas Nagy, Uwe Griebner. 2024-12-17. Self-compression of 5-$\mu$m pulses in hollow waveguides. https://arxiv.org/abs/2412.12927

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