Frequency shift of an intense laser pulse induced by plasma wave

Frequency shift of an intense laser pulse induced by plasma wave

Spectral modification of an intense (≥1018Wcm−2) laser pulse propagating in a helium gas target was studied using Thomson scattering diagnostic. The spectra recorded at 90° to the laser propagation and polarization direction show a significant modulation and modification of the incident laser pulse...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2012-07, Vol.680, p.103-107
Hauptverfasser: Pathak, N.C., Bussolino, G., Cecchetti, C.A., Giulietti, A., Giulietti, D., Köster, P., Levato, T., Labate, L., Gizzi, L.A.
Format: Artikel
Sprache:eng
Schlagworte:
Accelerators
Excitation spectra
Frequency shift
Helium
Laser plasma interaction
Lasers
Modulation
Plasma waves
Spectra
Spectrum modification
Thomson scattering
Wakefield
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Beschreibung
Zusammenfassung:Spectral modification of an intense (≥1018Wcm−2) laser pulse propagating in a helium gas target was studied using Thomson scattering diagnostic. The spectra recorded at 90° 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.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2012.04.012