Self-compression of 5-$μ$m pulses in hollow waveguides
Martin BöckMax Born Institute , Max Born Str. 2a , Berlin , D-12489 , GermanyУ. К. СапаевTashkent State Technical University , Universitet St 2 , Tashkent , 100095 , UsbekistanJı Eun BaeCentre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP) , UMR 6252 , CEA-CNRS-ENSICAEN , Université de Caen Normandie , 6 Boulevard Maréchal Juin , Caen Cedex 4 , 14050 , FranceAnton HusakouMax Born Institute , Max Born Str. 2a , Berlin , D-12489 , GermanyJoachım HerrmannMax Born Institute , Max Born Str. 2a , Berlin , D-12489 , GermanyTamás NagyMax Born Institute , Max Born Str. 2a , Berlin , D-12489 , GermanyUwe GriebnerMax Born Institute , Max Born Str. 2a , Berlin , D-12489 , Germany
2024en
ABI
Annotatsiya
We experimentally and numerically investigate self-compression of pulses around 5 $μ$m wavelength in a noble-gas-filled hollow waveguides. We demonstrate spectral broadening of multi-mJ pulses at 4.9 $μ$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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