TITLE

Guiding of 35 TW laser pulses in ablative capillary discharge waveguides

AUTHOR(S)
McGuffey, C.; Levin, M.; Matsuoka, T.; Chvykov, V.; Kalintchenko, G.; Rousseau, P.; Yanovsky, V.; Zigler, A.; Maksimchuk, A.; Krushelnick, K.
PUB. DATE
November 2009
SOURCE
Physics of Plasmas;Nov2009, Vol. 16 Issue 11, p113105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An ablatively driven capillary discharge plasma waveguide has been used to demonstrate guiding of 30 fs, 35 TW laser pulses over distances up to 3 cm with incident intensity in excess of 4×1018 W/cm2. The plasma density range over which good guiding was observed was 1–3×1018 cm-3. The quality of the laser spot at the exit mode was observed to be similar to that at the entrance and the transmitted energy was ∼25% at input powers of 35 TW. The transmitted laser spectrum typically showed blueshifting due to ionization of carbon and hydrogen atoms in the capillary plasma by the high intensity laser pulse. The low plasma density regime in which these capillaries operate makes these devices attractive for use in single stage electron accelerators to multi-GeV energies driven by petawatt class laser systems.
ACCESSION #
45515222

 

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