alexa Pulse self-compression to the single-cycle limit by filamentation in a gas with a pressure gradient.


Journal of Lasers, Optics & Photonics

Author(s): Couairon A, Franco M, Mysyrowicz A, Biegert J, Keller U

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Abstract We calculate pulse self-compression of a 30 fs laser pulse traversing gas with different pressure gradients. We show that an appropriate density profile brings significant improvement to the self-compression by filamentation. Under an optimal pressure gradient, the pulse duration is reduced to the single optical cycle limit over a long distance, allowing easy extraction into an interaction chamber.
This article was published in Opt Lett and referenced in Journal of Lasers, Optics & Photonics

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