Abstract
A general approach to the modifications of the spectrum of a laser pulse interacting with matter is elaborated and used for spectral diagnostics of laser wakefield generation in guiding structures. Analytical predictions of the laser frequency red shift due to the wakefield excited in a capillary waveguide are confirmed by self-consistent modeling results. The role of ionization blue shift, and nonlinear laser pulse and wakefield dynamics on the spectrum modification, is analyzed for recent experiments on plasma wave excitation by an intense laser pulse guided in hydrogen-filled glass capillary tubes up to 8 cm long. The dependence of the spectral frequency shift, measured as a function of filling pressure, capillary tube length and incident laser energy, is in excellent agreement with the simulation results, and the associated longitudinal accelerating field is in the range 1-10 GV m-1.
| Original language | English |
|---|---|
| Article number | 045024 |
| Journal | New Journal of Physics |
| Volume | 12 |
| DOIs | |
| Publication status | Published - 30 Apr 2010 |
| MoE publication type | Not Eligible |
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Analysis of laser wakefield dynamics in capillary tubes. / Andrew, N. E.; Cassou, K.; Wojda, F.; Genoud, G.; Burza, M.; Lundh, O.; Persson, A.; Cros, B.; Fortov, V. E.; Wahlstrom, C. G.
In: New Journal of Physics, Vol. 12, 045024, 30.04.2010.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Analysis of laser wakefield dynamics in capillary tubes
AU - Andrew, N. E.
AU - Cassou, K.
AU - Wojda, F.
AU - Genoud, G.
AU - Burza, M.
AU - Lundh, O.
AU - Persson, A.
AU - Cros, B.
AU - Fortov, V. E.
AU - Wahlstrom, C. G.
PY - 2010/4/30
Y1 - 2010/4/30
N2 - A general approach to the modifications of the spectrum of a laser pulse interacting with matter is elaborated and used for spectral diagnostics of laser wakefield generation in guiding structures. Analytical predictions of the laser frequency red shift due to the wakefield excited in a capillary waveguide are confirmed by self-consistent modeling results. The role of ionization blue shift, and nonlinear laser pulse and wakefield dynamics on the spectrum modification, is analyzed for recent experiments on plasma wave excitation by an intense laser pulse guided in hydrogen-filled glass capillary tubes up to 8 cm long. The dependence of the spectral frequency shift, measured as a function of filling pressure, capillary tube length and incident laser energy, is in excellent agreement with the simulation results, and the associated longitudinal accelerating field is in the range 1-10 GV m-1.
AB - A general approach to the modifications of the spectrum of a laser pulse interacting with matter is elaborated and used for spectral diagnostics of laser wakefield generation in guiding structures. Analytical predictions of the laser frequency red shift due to the wakefield excited in a capillary waveguide are confirmed by self-consistent modeling results. The role of ionization blue shift, and nonlinear laser pulse and wakefield dynamics on the spectrum modification, is analyzed for recent experiments on plasma wave excitation by an intense laser pulse guided in hydrogen-filled glass capillary tubes up to 8 cm long. The dependence of the spectral frequency shift, measured as a function of filling pressure, capillary tube length and incident laser energy, is in excellent agreement with the simulation results, and the associated longitudinal accelerating field is in the range 1-10 GV m-1.
UR - http://www.scopus.com/inward/record.url?scp=77952609241&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/12/4/045024
DO - 10.1088/1367-2630/12/4/045024
M3 - Article
AN - SCOPUS:77952609241
VL - 12
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 045024
ER -