By Topic

Extending plasma accelerators: guiding with capillary tubes

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

11 Author(s)
Cros, B. ; LPGP UMR CNRS, Univ. de Paris-Sud, Orsay, France ; Courtois, C. ; Malka, G. ; Matthieussent, G.
more authors

In order to extend plasma accelerators, the laser beam has to be guided inside gas or plasma over a distance of the order of the dephasing length, which is typically much larger than the diffraction length zR of the laser. A capillary tube can be used as a waveguide for high-intensity laser pulses over distances well in excess of zR. Experimental demonstration of monomode guiding over 100 zR of 1016 W/cm2 pulses has been obtained in evacuated capillary tubes (45-70-μm inner diameter). A drop of transmission has been observed when the intensity of the amplified spontaneous emission (ASE) is high enough to ionize the capillary tube entrance. Propagation in helium gas-filled (10-40 mbar) capillary tubes has been studied at intensities up to 1016 W/cm2; a plasma column with on-axis density of the order of 1017 cm-3 has been created on a length of the order of 4 cm. The use of a capillary tube for an extended accelerator is discussed for the ease of linear, resonant excitation of plasma waves by laser wakefield

Published in:

Plasma Science, IEEE Transactions on  (Volume:28 ,  Issue: 4 )