Abstract
We report on the evaluation of the performance of self-guiding over extended distances with f /20
and f /40 focussing geometries. Guiding over 39 mm or more than 100 Rayleigh ranges was observed
with the f /20 optic at ne = 1.5 × 1018 cm−3
. Analysis of guiding performance found that the extent
of the exiting laser spatial mode closely followed the matched spot size predicted by 3D non-linear
theory. Self-guiding with an f /40 optic was also characterised, with guided modes observed for
a plasma length of 90 mm and a plasma density of ne = 9.5 × 1017 cm−3
. This corresponds to
self-guided propagation over 53 Rayleigh ranges and is similar to distances obtained with discharge
plasma channel guiding.
Original language | English |
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Article number | 014022 |
Number of pages | 6 |
Journal | Plasma Physics and Controlled Fusion |
Volume | 60 |
Issue number | 1 |
DOIs | |
Publication status | Published - 31 Oct 2017 |
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Dive into the research topics of 'Measurements of self-guiding of ultrashort laser pulses over long distances'. Together they form a unique fingerprint.Student Theses
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Experimental studies of the dynamics of neutral electron-positron beams
Author: Warwick, J. R., Jul 2020Supervisor: Sarri, G. (Supervisor) & Borghesi, M. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy
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