Pulse self-compression to the single-cycle limit by filamentation in a gas with a pressure gradient
- 1 October 2005
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 30 (19) , 2657-2659
- https://doi.org/10.1364/ol.30.002657
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.Keywords
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