Excitation and measurement of laser induced wakefields

The amplitudes of wakefields excited by the ponderomotive force of an intense laser pulse are dependent on laser pulse shape and amplitude. Pulses with steep edges can drive wakefields in the standard LWFA when {omega}{sub p}{delta}{tau}{sub L}>>1. The temporal and spatial properties of the wa...

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Bibliographic Details
Main Authors: Le Blanc, S. P., Gaul, E. W., Downer, M. C.
Format: Conference Proceeding
Language:English
Subjects:
BEAM MONITORING
BEAM OPTICS
BEAM-PLASMA SYSTEMS
EXCITATION
FOURIER ANALYSIS
HOLOGRAPHY
LASER-PRODUCED PLASMA
LASERS
MODULATION
NONLINEAR PROBLEMS
PARTICLE ACCELERATORS
PARTICLE BEAMS
PONDEROMOTIVE FORCE
PULSE SHAPERS
PULSES
REFRACTIVE INDEX
WAKEFIELD ACCELERATORS
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Summary:The amplitudes of wakefields excited by the ponderomotive force of an intense laser pulse are dependent on laser pulse shape and amplitude. Pulses with steep edges can drive wakefields in the standard LWFA when {omega}{sub p}{delta}{tau}{sub L}>>1. The temporal and spatial properties of the wakefield micro-structure can be measured by a single shot optical diagnostic based on frequency domain holography. In a proof of principle demonstration of this technique, cross-phase modulation of a weak probe pulse by two strong pump pulses is measured using the the nonlinear index of refraction of fused silica.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.58860