Scientific Results

Frequency shift of an intense laser pulse induced by plasma wave

Year: 2012

Authors: Pathak N.C., Bussolino GC., Cecchetti C. A., Giulietti A., Giulietti D., Koester P., Levato T., Labate L., Gizzi LA.

Autors Affiliation: ILIL, Istituto Nazionale di Ottica, CNR, Via G. Moruzzi, 1, 56124 Pisa, Italy; Dipartimento di Fisica, \”E. Fermi\” University of Pisa, Pisa, Italy; INFN, Sezione di Pisa, Largo B. Pontecorvo 3, Pisa, Italy

Abstract: Spectral modification of an intense (>= 10(18) W cm(-2)) laser pulse propagating in a helium gas target was studied using Thomson scattering diagnostic. The spectra recorded at 90 degrees to the laser propagation and polarization direction show a significant modulation and modification of the incident laser pulse during its interaction and propagation through the helium gas target. Simulations suggest that such a modulation in the spectrum of the laser pulse could arise due to its interaction with the self excited plasma waves. (C) 2012 Elsevier B.V. All rights reserved.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 680      Pages from: 103  to: 107

More Information: This work was partially supported by the INFN project Plasmon-X. It is our pleasure to acknowledge the use of EPOCH code. We would like to thank W. Baldeschi, A. Barbini, A. Rossi and M. Voliani of the IPCF-CNR staff for their technical assistance.
KeyWords: Laser plasma interaction; Wakefield; Thomson scattering; Spectrum modification;
DOI: 10.1016/j.nima.2012.04.012

Citations: 6
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