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ULTRAFAST OPTICS

Striving for extreme solitons

Judicious scaling of the waveguide properties of a simple hollow capillary fibre filled with helium allows for powerful pulse temporal compression down to the sub-femtosecond level, further enabling the efficient generation of ultrafast ultraviolet light.

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Fig. 1: Principle of soliton compression in a gas-filled HCF.
Fig. 2: The soliton in nonlinear fibre propagation.

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Correspondence to Benjamin Wetzel.

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Wetzel, B., Benabid, F. Striving for extreme solitons. Nat. Photonics 13, 509–511 (2019). https://doi.org/10.1038/s41566-019-0497-0

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