The interaction of an ultraintense, 30-fs laser pulse with a preformed plasma was investigated as a method of producing a beam of high-energy electrons. We used thin foil targets that are exploded by the laser amplified spontaneous emission preceding the main pulse. Optical diagnostics show that the main pulse interacts with a plasma whose density is well below the critical density. By varying the foil thickness, we were able to obtain a substantial emission of electrons in a narrow cone along the laser direction with a typical energy well above the laser ponderomotive potential. These results are explained in terms of wake-field acceleration.
|Journal||Physical Review E|
|Issue number||1 II|
|Publication status||Published - Jul 2001|
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Statistical and Nonlinear Physics
- Mathematical Physics
Giulietti, D., Galimberti, M., Giulietti, A., Gizzi, L. A., Borghesi, M., Balcou, P., Rousse, A., & Rousseau, J. P. (2001). High-energy electron beam production by femtosecond laser interactions with exploding-foil plasmas. Physical Review E, 64(1 II), 015402/1-015402/4.