Research Papers in Physics and Astronomy

 

Date of this Version

2010

Document Type

Article

Citation

Physical Review Letters 105, 215001 (2010); DOI: 10.1103/PhysRevLett.105.215001

Comments

Copyright 2010 The American Physical Society. Used by permission.

Abstract

We investigate the influence of a tilted laser-pulse-intensity front on laser-wakefield acceleration. Such asymmetric light pulses may be exploited to obtain control over the electron-bunch-pointing direction and in our case allowed for reproducible electron-beam steering in an all-optical way within an 8 mrad opening window with respect to the initial laser axis. We also discovered evidence of collective electron-betatron oscillations due to odd-axis electron injection into the wakefield induced by a pulse-front tilt. These findings are supported by 3D particle-in-cell simulations.

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