Experimental Evidence of Photon Acceleration of Ultrashort Laser Pulses in Relativistic Ionization Fronts

Experimental Evidence of Photon Acceleration of Ultrashort Laser Pulses in Relativistic Ionization Fronts

The frequency up-shifts of ultrashort laser pulses (65 fs) propagating in opposite directions (20° and 160°) with respect to a relativistic ionization front (interface gas plasma) are measured for the first time. Up-shifts of the order of 25 nm are observed. A very good agreement is found with a two...

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Veröffentlicht in:Physical Review Letters 1997-06, Vol.78 (25), p.4773-4776
Hauptverfasser: Dias, J. M., Stenz, C., Lopes, N., Badiche, X., Blasco, F., Dos Santos, A., Oliveira e Silva, L., Mysyrowicz, A., Antonetti, A., Mendonça, J. T.
Format: Artikel
Sprache:eng
Schlagworte:
ACCELERATION
INTERFACES
IONIZATION FRONT ACCELERATORS
LASERS
Optics
PHOTONS
PHYSICS
PULSES
WAVE PROPAGATION
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Beschreibung
Zusammenfassung:The frequency up-shifts of ultrashort laser pulses (65 fs) propagating in opposite directions (20° and 160°) with respect to a relativistic ionization front (interface gas plasma) are measured for the first time. Up-shifts of the order of 25 nm are observed. A very good agreement is found with a two-dimensional ray-tracing theory.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.78.4773